Cleavage Window

Her windows to the soul are up there.

"You have a bullet proof fabric and you want to cut a hole in it right over your heart??? Are you insane?"

— Sahira, Spinnerette

A cut in a woman's top that shows her breast cleavage, whether it's on the top or front side. It doesn't matter the shape or the size, as long as the window is completely enclosed and clearly shows breast cleavage. It also doesn't matter about the rest of the outfit, as this can be on a bathing suit, a sweater, a Leotard of Power, a Minidress of Power, or a grand Pimped-Out Dress.

If the cleavage window creates a gap in the protection of a character's chest armor, that armor is a Chainmail Bikini. This can be egregrious the moment one starts to think about it being part of one's battle armor, as it leaves the heart entirely uncovered.

Obviously a form of Fanservice, and likely Author Appeal.

Compare Most Common Superpower, Navel-Deep Neckline (which can overlap if the window drops far enough), Impossibly-Low Neckline, Naked in Mink, Male Gaze. Sister Trope to Navel Window, which applies the same general idea of exposure to the character's belly button without fully baring the midriff.

See also Form-Fitting Wardrobe, Chest Insignia.

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Examples:

Anime & Manga

• Ah! My Goddess: Belldandy. Yes, Belldandy. It's the only skin showing in that outfit besides her face.
• Zessica Wong from Aquarion Evol wears a short halterneck crop with a very large opening exposing her cleavage.
• Ms. Fanservice Haruka Gracia from Basquash! wears dress with a large cleavage cutout.
• Isabella from Beelzebub has a small opening in the chest area of her maid uniform.
• The title heroine's outfit in Cutey Honey is a sleeveless unitard with a huge diamond-shaped cutout that even shows off a bit of stomach. In Re: Cutie Honey she wears a halterneck crop top with a heart-shaped hole over her cleavage.
• Yin of the Darker than Black franchise costume contains a mild version of this. She's far from well-endowed but, the combination of her dress and throw create a patch of visible skin.
• In one instance of Death Note, model/actress Misa Amane attempts to get Matsuda out of a jam with a roomful of shady businessmen by pretending to want to be a model/spokesperson for them. She is seen with a tank top with a heart-shaped cut that revealed her cleavage.
• Demon Slayer: Kimetsu no Yaiba: Mitsuri's top is almost completely unbuttoned to accommodate her breasts, which results in a diamond-shaped window that shows off her cleavage. Despite how much she moves around when fighting, nothing indecent is ever shown. It's even lampshaded by Muichiro, who rather bluntly points out that her breasts could spill out of her uniform at any moment.
• The Dirty Pair had these in some of their appearances, when the character design included collars that buttoned up but a large diamond-shaped opening exposing their cleavages.
• In the first season of Galaxy Angel, Forte wears a dress with an opening showing off most of her chest (barely held up by thin straps) and Ranpha wears a Chinese-inspired dress with a diamond-shaped cutout above her cleavage. They were covered up in the second season onward due to the show being picked up by a network with strict content rules.
• Princess Piña Co Lada in Gate has a window exposing her cleavage in just about all of her outfits, including the armor she wears in battle.
• Some characters in JoJo's Bizarre Adventure: Golden Wind, notably Giorno Giovanna, Bruno Bucciarati, and Vinegar Doppio, are amongst the Rare Male Example of cleavage windows.
  • Rikiel from JoJo's Bizarre Adventure: Stone Ocean has this too. The English dub even has Ermes lampshade this, calling him "that bastard with the boob window."
• Kaiju Girl Caramelise: When Manatsu confronts Arata in his apartment building lobby, she is dressed in a rubber replica of Harugon with a heart-shaped gap just above her bust.
• In the anime Kill la Kill, Satsuki's Kamui Junketsu in its armor form has an opening that shows off her cleavage.
• Millie's default outfit in Lost Universe fits this trope. The swimsuit she wears in episode four has an interesting variation on the idea, in that the window is just below her breasts.
• Lyrical Nanoha
  • Arf's Barrier Jacket has a crop top with a diamond-shaped keyhole. It's implied that the design was inspired by Linith, Fate's Parental Substitute before the series started, who wore an outfit that comprised an outer-coat with buttoned collar and buttoned below her chest and dress with a diamond-shaped cutout above her cleavage.
  • Iris from the Reflection/Detonation duology also has a diamond shaped one in her powered-up state (in contrast to her usual outfit, which has a diamond shaped piece of black fabric in the same spot). In this case, it actually ties into the series' love for Vehicular Theme Naming, since Iris was the name of a defunct British car company that gave all of their products diamond shaped grilles.
• Medaka's student council outfit in Medaka Box has a huge opening on the chest area that shows off a lot of cleavage. Amusingly, it becomes a major plot point because it violates the dress code.
• The Misfit of Demon King Academy: When the reincarnated Emila Lud(o)well returns in episode five of the second season, the rags she found herself dressing up in show off a fair amount of her cleavage.
• A number of Robes in My-Otome cover their wearers from head-to-toe but leave opening to show off cleavage, mainly Maria's, Fiar's, Chie's second Robe, and Mai's. Akane's Robe just has it: only a little bit of fabric keeps it from Impossibly-Low Neckline. Oddly, Haruka's (for lack of a better term) off-duty uniform has a diamond-shaped cleavage cutout, but not her Robe, as is the case with Una Shamrock in My-Otome 0~S.ifr~.
• Ran in One Piece wears a crop top with a window hole in the middle.
• Photon: The Idiot Adventures: Keyne Aqua's outfit combines a Bolero jacket with an exercise leotard that leaves a rhombus-shaped space which frames her breastbone. Otherwise, Keyne goes bopping about in her birthday suit.
• Mizuho in Please Teacher! could, in her alien outfit, open up a cleavage cutout by will, and did so in her attempt to seduce Kei.
• Madoka Kaname from Puella Magi Madoka Magica sports one on the dress she wears as Ultimate Madoka. Kyoko also has one where her Soul Gem rests.
  • Kazumi, on both her outfits in Puella Magi Kazumi Magica. Mirai also sports one of these.
  • Haruka Kanade and Arisa Narumi in Puella Magi Suzune Magica.
• Apple from Red Photon Zillion wears a blouse with a neckline that plunges at least three inches, with a tiny strap for a collar. The result is a teardrop-shaped window that shows a small amount of cleavage.
• Melissa's cleric dress in Rune Soldier Louie has a diamond-shaped opening show off her cleavage. Genie's halterneck crop top has two opening, one on top of her cleavage and one on top of her Underboobs.
• In The Seven Deadly Sins Diane has one of these on her Leotard of Power, while Jericho wears an armor with a hole on the front that shows part of her breasts and bra.
• Tiara of Shamanic Princess, when she's not in her Super Mode sports a heart-shaped cleavage cutout.
• Fittingly, her Expy, Golden Darkness (Yami) of To Love Ru also has one, though in a diamond pattern and a single piece of cloth.

Comic Books

• Emma Frost's Phoenix Five costume in Avengers vs. X-Men has an enclosed opening on the top portion right above her cleavage.
• Ra's Al-Ghul's daughter Talia Al-Ghul often wears a gown with a cleavage window in the Batman comics.
• Invisible Woman of Fantastic Four had one, shaped like the figure 4, in her Stripperiffic 1990s outfit. On more than one occasion has it been pointed out the physical improbability of maintaining the appearance of a number 4 in such a manner.
• In Grendel, Christine Spar's street clothing often has cleavage windows, although her costume as Grendel doesn't.
• One of the several forms taken by the Marvel Universe version of Death is a grey-skinned, tattooed woman wearing a corset with a cleavage opening. Yes, The Grim Reaper herself has the Most Common Superpower.
• Icon: Rocket's first costume is a full bodysuit and a jacket covered her from head-to-toe but the bodysuit had a cleavage cutout, to Icon's vague disapproval. Her second costume, which Icon designed, eschewed this.
• Phantom Lady in 1946 had one of the first ones with her costume which was a mini dress with a plunging neckline and cape wrapped around her neck. Most of the other costumes merely had an Impossibly-Low Neckline.
• Many of Power Girl's costumes have openings that exposes her cleavage (one of which is the trope picture). There are a number of issues where Power Girl explains the rationale behind it but the reason seems to change every time. It serves as distraction, it shows that she's proud of her body, and she can't decide on a Chest Insignia. As for making her more vulnerable, Power Girl at least has the excuse of being Kryptonian, meaning that she's Immune to Bullets (unless they happen to be magic projectiles or kryptonite projectiles, which then would make this point completely moot, especially since Kryptonite Is Everywhere).
  • Averted with the New 52 relaunch. Power Girl wore a bodysuit that fully covers her◊. However, in one issue where her costume gets tears after a fight, one of those tears is a hole above her cleavage. She eventually gets her iconic, plays-this-trope-straight, costume back after about a year.
  • One popular fan theory is that the window actually is a sort of Chest Insignia. If you look at it the right way it resembles an IEC POWER symbol.
  • Like many other heroes, Power Girl eventually got a Spear Counterpart in the form of Power Boy — and yes,◊ he was a Rare Male Example of this trope.
  • The 2023 Power Girl run gives her yet another costume that is something of a mix between the classic version and the New 52 one: a sleeveless white suit with a cleavage window and a red jacket. The window appears to be the one part of her appearance (other than her Boyish Short Hair) that cannot be changed.
• Supergirl:
  • In Supergirl Vol. 5 issue #34, Catherine Grant wears a red dress which has an enclosed opening on the top portion right above her cleavage.
  • In the New 52 book, Supergirl and Power Girl argue the latter's cleavage-displaying costume.
    Power Girl: Uh... Old?
    Supergirl: No, not old. Just old...er... Older than me, anyway. And maybe a little too old for that outfit, too.
    Power Girl: What's wrong with this outfit?
    Supergirl: C'mon, Kara. It's a bit... much, don't you think?
    Power Girl: It came from your wardrobe, Supergirl!
    Supergirl: Yeah, but I never actually wore it.
• Taken to its extreme in Transmetropolitan #24. Channon Yarrow (an ex-stripper) wears a backless, strapless dress with an Impossibly-Low Neckline, sides slit to the hips, thigh-to-knee diagonal hemlines (opposing angles front and back), armpit length gloves, and no less than ten triangular windows; three on the outside of each glove, one on each side of her waist, one exposing her bellybutton, and one fully exposing her left nipple. She wears the triangle of fabric as a necklace.
• Kimura, X-23's Arch-Enemy, often wears bodysuits with cutouts above her breasts.

Fan Works

• Dungeon Keeper Ami: As mentioned in "Fairy Attack": The fairy sisters' uniforms:
  The smaller gap in the front, strategically positioned to reveal a good amount of cleavage, had to be for vanity purposes.
• Evangelion 303: In chapter 16 Rei slowly starts to emerge out of her shell and tries different things, including to wear a dress with a circle-shaped cut above her breasts. Here's a preview.
• In Imaginary Seas, Percy is baffled by his father's armor, which has a gaping hole to expose his chest. It doesn't matter much given his Nigh-Invulnerability, but he feels indecent because of it and quickly looks for a shirt to cover himself up.
  Percy: Dad, why is there a boob window?
• Superwomen of Eva 2: Lone Heir of Krypton: During her Power Girl phase, Asuka's costume had a very large cleavage and a cord stretching across her neck, shaping a triangular cutout above her breasts.
• In "Christmas in Kansas", part of the Sorrowful and Immaculate Hearts series, there's a conversation about superhero costume design, and Diana jokingly suggests that what Batman's suit is lacking is a bat-shaped cleavage window.
• Played for laughs in Skyhold Academy Seasons, when the staff are designing costumes for the school play. Varric has a conversation with Bethany in which he reminds her that he needs to wear something which will show off his chest hair.

Films — Animation

• Queen Tara from Epic (2013) wears a green dress with a huge opening in the chest area.
• Power Girl got to keep her real costume — complete with this feature — in her first true animated appearance, Superman/Batman: Public Enemies. (Probably because the movie was direct-to-DVD.)

Films — Live-Action

• Blood Pi: In her first girl's night in with Agnis, Amber wears a black dress with a little cleavage window.
• In Dragonball Evolution, Lord Piccolo's henchwoman Mai wears a red jumpsuit with an opening above her chest.
• Attorney General "Fun Bags" in Idiocracy wears a dress with a teardrop-shaped opening showing off her cleavage.
• Spirits of the Dead: One of the actresses at the awards show is clad in a tight dress with a prominent Cleavage Window to show off her large breasts. And if that wasn't enough, director Federico Fellini zooms in for a tight closeup of said breasts as the actress gets up to accept an award.
• Psylocke has a unique two-pane Cleavage Window in X-Men: Apocalypse.

Literature

• For the Forgotten Realms novel Azure Bonds, the protagonist Alias is depicted in Clyde Caldwell's cover art◊ wearing chain mail armour with a large gap between her breasts. In the novel she is described as wearing this outfit unwillingly and only in the closing chapters, with the narrator calling it "showy, but impractical".
  • This has been handwaved as either ceremonial armour, or to allow those controlling her through the eponymous azure bonds to kill her easily if she showed signs of rebellion. The image has been used throughout Dungeons & Dragons media and the spin-off computer game, Curse of the Azure Bonds.
  • In the game modules, the armor is enchanted and either extends mystic protection to the open area, or the armor protecting her chest is invisible.
    • A later novel in the series finally offered an explanation, saying that the armor was made by a vain sorceress who wanted to show off the goods, and did add a protection spell covering the "window" to keep it from being a liability.
  • The entire thing was lampshaded when Alias guest-starred in the Forgotten Realms comic book in 1989, and the halfling Foxilon Cardluck had the following exchange with her:
  Foxy: Uhh... Doesn't that armor get drafty sometimes?
  Alias: It's enchanted.
  Foxy: (under his breath) Oh, I'll just bet it is.
• In The Wheel of Time Ebou Dari dresses are described as having an oval cutout exposing the inner slopes of the wearer's bosom. On married local women, this is to frame the marriage knife, whose hilt nestles between the breasts.

Live-Action TV

• The Adventures of Slim Goodbody: How exactly they got a puppet with one of these past the radar, we'll never know, but a princess-puppet named Flora Follicle was wearing a dress with one of these, and yes, she had a noticeable crease in the middle of her chest.
• In season 2 of Babylon 5, Delenn experiments by exchanging her usual robes for a slinky black dress with a diamond-shaped opening over her cleavage. Everyone who sees her is stunned speechless.
  • The window is a not-uncommon part of Earth women's fashion — usually a high closed collar over a low neckline, creating the window. "Number One" (the head of the Mars Resistance) is one of the most notable bearers of such, wearing it in all her appearances.
• The Boys (2019). Starflight isn't happy when her corporate managers force her to wear a Hotter and Sexier superhero costume with this trope. At one point she has to cover her cleavage with her hand while bending down for a selfie with a little girl wearing her old costume, only to get Wolf Whistles and catcalls from the watching male fans. She tells the girl not to waste her money upgrading to the new version.
• Game of Thrones: At least one of Daenerys' Meereenese gowns.
• Metal Hurlant Chronicles: Kelly Brook's character Scarr in "Master of Destiny" is a space mercenary dressed in a leather catsuit with a boob window.
• Ingrid the Snow Queen in Once Upon a Time sports a big window in her sparkly white dress that doesn't leave much to the imagination.
• Alexia from Pixelface has a bodysuit with a pentagon-shaped cleavage cutout.
• A Series of Unfortunate Events (2017): Esmé Squalor features this while wearing a nurse's outfit in The Hostile Hospital.
• Space: 1999 : In the two-part story "Bringers Of Wonder", hostile aliens visit the Moon masquerading as old friends of the Alphans. One of them has the appearance of an attractive woman wearing a tight white Sexy Slit Dress that also features a cleavage window. Given that her image has been lifted from Koenig's memory, this helps to explain the friction between 'her' and Dr Russell.
• Star Trek:
  • From Star Trek: The Next Generation onward, the female Klingons are wearing outfits similar to their male counterparts, except with a cleavage-baring opening on the chest armor. Probably has something to do with the whole Space Viking motif. This is particularly silly, considering that Klingons attack each other with bladed weapons all the time. Even considering that Klingons have not one but two hearts.
• Captain Liberty of The Tick (2001) has a star-shaped cutout on the chest of her leotard. (As this shape produces unsupported upwards-pointing "spikes" of fabric, and spraying them with glue isn't sufficient to guarantee they won't come loose, the costumer opted to sew them to flesh-colored foam cleavage. The same is recommended for cosplayers.)
• Pam from True Blood frequently boosts her cleavage with a corset, but only when she's in action mode do we not see this vampire bartender presenting a cleavage window.

Music

• Cathy Dennis wears several different colored catsuits in the video for "Touch Me (All Night Long)", each one with a circular-shaped cleavage window.
• The top worn by Cristina Scabbia◊ in the video for "Reckless" by Lacuna Coil is an extreme example: its entire front consists of a series of wide windows, separated by narrow strips of cloth. In the video Cristina wears it with just a bra underneath, showing not just plenty of cleavage but her entire stomach as well.
• Nicki Minaj in her "Turn Me On" music video wears a black Victorian-style dress with a diamond-shaped cleavage cutout.
• Hyosung from Korean girl group Secret wore a white mini dress with a large cleavage cutout.

Pinballs

• The female warriors of Laser War wear breast-separating jumpsuits that leave their centers exposed.

Podcasts

• Sargas from Sequinox is a Rare Male Example, having a circular patch cut out of his outfit to show his pecs.

Print Media

• The picture◊ for Fanservice Cover shows Kiera of Jak and Daxter in a Sexy Santa Dress with a crop top that has an opening trimmed with fur that shows off her cleavage.

Pro Wrestling

• WCW wrestler Mona used to wrestle in a mini dress with a triangle-shaped window.
• Subverted by Daffney Unger, who had screens over her cleavage window outfits. Tinted screens.^note Glory provides◊ a◊ few◊ photos◊ and straight example◊.
• Su Yung has worn a shirt with slits in it. Depending on how she moves and or the camera angle, her belly or her boobs become visible.
• Subverted by Alexis Rose, who has a leotard with a stained glass window-type pattern cut out around her chest. But the snob wears a shirt underneath it, to deprive viewers of her cleavage.
• Shazza McKenzie's "Supergirl" ring gear parodies Power Girl with a heart-shaped chest window that shows off pretty much everything except McKenzie's cleavage.
• Lady Frost's white fur gear has a cleavage window obscured by white paint, simulating...frost.

Video Games

• Leslie's crop top in Arc Rise Fantasia has multiple openings in the center, two of which show off her cleavage and Underboobs.
• Bayonetta's default outfit has a large circular boob window. This is also where she wears her umbran watch.
• Maya in Borderlands 2 has a small one. It's less noticeable than most on this list, partly because of her proportions and partly because of her default color scheme.
  • Fiona from Tales from the Borderlands has an opening in her shirt in the shape of a tie.
• Cho Aniki : The first time Benten showed her cleavage was in Ai Cho Aniki when she donned a leotard. She later gets a strapless leotard in Zero that shows off more of the cleavage on her larger breasts as of that game.
• Orlha in Chrono Cross has mini dress with large diamond cutout in the center that shows off cleavage and some stomach.
• In Conduit 2, Andromeda's full-body armor covers everything except her face and the tops of her breasts.
• Hsien-Ko from Darkstalkers wears an overtunic with a large oval-shaped chest opening.
• Both the Vampire Armor and Royal Vampire Armor from Dawnguard have cleavage windows that conveniently only exist when worn by female characters. The Royal Vampire Armor is a curious case, however; it doesn't actually have a window. However, the suit includes a hooded cape which is secured at the throat, and this combined with the low-cut armor creates the impression of this trope.
• Dragon Age:
  • Morrigan's purple top combined with her thick layered necklace, in Dragon Age: Origins, creates the image of a cleavage window.
    • Some of the armor sets also provide these, especially the Chasind robes when worn by a female.
    • A similar design is found in the Awakening expansion, particularly on Velanna's starting outfit and the mage robes worn by The Baroness.
  • The only thing that comes close to a cleavage window in Dragon Age II, on the other hand, is Varric's shirt. Varric is a male dwarf whose silk shirt has a plunging neckline to show off his Carpet of Virility. It's a minor Running Gag.
  • Varric's neckline makes a return in Dragon Age: Inquisition. Meanwhile, Vivienne's non-combat outfit features a more traditional cleavage window, diamond-shaped.
• Echocalypse: A handful of the girls wear attires that possess an opening that shows off each one's cleavage such includes Shiyu, Nightingale, Vivi, Iori, ect. Kiki, who is hardly dressed herself, takes a step further by possessing a Navel-Deep Neckline as shown in an artwork that also had Pan Pan and Raeon.
• Along with too many female characters to list, Fate/Grand Order has a Rare Male Example from Odysseus.
• With some exceptions, almost every "Harness"-type body armor in Final Fantasy XI will have enclosing chest opening for both females and males. The defensive value of a Cleavage Window is hotly contested.
• Jihl Nabaat from Final Fantasy XIII and XIII-2 has an impressive cleavage window to go with her Baroness and Hot Librarian look. It's also where adornments such as dolls get placed when she is recruited as a Mon in XIII-2. In the sequels, there's also Paddra Nsu-Yeul, who has an open slit on the front of her top running from her chest down to her stomach.
• In Fire Emblem Fates, some of the male characters' default outfits have this, especially the ninjas.
• Exaggerated in God of War III with Aphrodite. The dress she wears has an opening on the chest that exposes the entirety of both breasts.
• In the character art and battle models for Golden Sun: Dark Dawn, Chalis's dress has a heart cutout over her navel. In her super-deformed noncombat model, the cutout is a little higher up.
• In Goodbye Volcano High, two optional outfits Fang can wear will feature cleavage windows:
  • If the player chooses to go on a date with Naomi, Fang's dress for it will include a black top with a see-through cleavage window.
  • Fang's default outfit for the final concert includes a black top has a cleavage window cut in the shape of a shooting star. This is seen if the player chooses not to date Naomi, or turns down the outfit she made for Fang.
• Two Rare Male Examples in I Was a Teenage Exocolonist:
  • Lum's shirt that has a low neckline and his metal collar that completely covers his neck and shoulders form a triangular hole that exposes his hairy pecs.
  • Rex wears a shirt with a hole in the chest area as a teen.
• In The Legend of Zelda: Twilight Princess, Iza's small halter top like shirt has two fastened buttons that still leave a huge hole between buttons, revealing her cleavage. Her brother Coro also wears the same kind of shirt that also shows off a hole in his chest.
• Jean Grey's Phoenix Five costume in Marvel: Avengers Alliance.
• One of the default NPC outfits in Mass Effect is a long dress with an enclosed oval-shaped chest area.
  • Matriarch Benezia has an impressive one which the camera makes sure to give you a close-up of when she's first seen on screen.
• In the first Master of Orion game, the Mrrshan ambassador has an halterneck outfit with a large keyhole in the front.
• In Mortal Kombat 11, Skarlet gets one of these as an alternate costume. Performing the gruesome Fatalities on her is the easiest way to notice that she was given◊ a◊ pretty◊ impressive◊ set◊ of◊ boobs.◊
• Neptunia has Neptune and Noire in their HDD forms wearing leotards with openings in the chest area.
  • Cave from mk-2 has a Cleavage Window as well with her Deathsmiles-esque attire.
• Inphyy's armor in Ninety-Nine Nights has a opening in the chest area that shows off her cleavage
• In Ōkami, the first form/clothing set of Wood Sprite Sakuya, who is a peach tree spirit, has two Cleavage Windows. The first one is a diamond-shaped cutout showing off her cleavage. The second ones bares her buttocks, to go even further than the first one in using her figure to remind a viewer of her connection to peaches.
• Persona 5: Ann Takamaki's Spy Catsuit has its zipper open from her collar bones to partway down her breasts, leaving a section of her bare chest visible.
• Fina's dress in Skies of Arcadia has a triangle-shaped cutout in the chest area. It also has the distinction of a purpose outside of fanservice: the exposed skin is where Fina's shard of the Silver Moon Crystal appears.
• In Sonic Heroes, Rouge wears a bodysuit with an enclosed opening that shows off her cleavage.
• Alicia Pris in Tail Concerto wears a sleeveless crop-top shirt with a diamond-shaped hole in the middle, showing off her cleavage. Solatorobo: Red the Hunter was going to give Alicia a new outfit, one that would connect her boob-window to her exposed stomach, but that ended up getting scrapped for whatever reason.
• Harold Berselius in Tales of Destiny 2 wears a jacket that sports a triangular one just over her corset.
• Norma in Tales of Legendia wears mini dress with a diamond-shaped cutout at the center. She's also the least-endowed of the Legendia girls.
• In Tales of Symphonia, Martel has a triangle-shaped cleavage cutout in the flashback scenes, although it's hard to catch. It's a lot more noticeable in The Anime of the Game.
• Cumore from Tales of Vesperia is a Rare Male Example, being a foppish nobleman with a heart-shaped in his clothes over his pecs.
• World of Warcraft features several chest armors for females with a Cleavage Window. One example is the Riverblade Armor set◊.
• Yisha Tarren of X: Rebirth in a gross violation of common sense, has a boob window on what appears to be her Latex Space Suit. Amusingly, one of the very first Game Mods to be released patched up the hole.
• Xenoblade Chronicles 1 has several sets of armor, with various holes cut over the cleavage, for Sharla, Melia, and Fiora.
• Xenoblade Chronicles 3: Both Ethel and Eunie show quite a bit of cleavage for people from a society with no concept of sex or physical attraction. However, they both have their life tattoos on their cleavage; it seems they picked their clothes simply to display their tattoos.

Visual Novels

• There are two examples in The Cradle of Ruin. Megi’s top is a little revealing depending on the angle. Angelica’s dress has a far more revealing as the front portion shows her cleavage in full view. Demonica’s dress is the same as Angelica’s except in black.
• Saber's dress in Fate/stay night has opening in the chest area, though strictly speaking there's not really any cleavage to emphasize.
  • Also it should be noted whenever she goes into battle, her window is covered up by a large chestplate. And her normal civilian dress has no window.
• In Virtue's Last Reward, all Alice wears above her waist is an open jacket and a large Egyptian necklace. The important bits stay covered no matter what, but her cleavage remains on full display. And in several routes, she ends up getting fatally stabbed through the heart.

Web Animation

• Virtual YouTuber Kaguya Luna sports this as part of her appeal. Humorously, she references this fact in one video where she states her distaste towards being called "Chestbutt".
• RWBY:
  • Yang creates this effect by layering clothes. Her scarf and top expose the top half of her breasts while covering up the top half of her chest and neck.
  • Glynda Goodwitch has a centralized oval-shaped hole in her blouse that is enclosed by the very high collar that she wears.
  • Nora has a little heart-shaped hole just above her chest. After the Time Skip, it appears to have gained rips.
  • All of the main girls have this post-Time Skip: Ruby has a blouse with a hole that would be large enough to completely expose her breasts were it not covered by her corset, Weiss has a cardigan over a sweetheart neckline dress, Blake has a crop top with multiple diamond-shaped holes in a pattern over the chest, and Yang has a setup similar to her old outfit, but smaller and with her jacket's weird round collar instead of a scarf.
  • Emerald wears a white top with an entirely cut-out front over a green strapless top that prevents her breasts from being fully exposed.
  • Salem wears a black robe that exposes her cleavage.

Webcomics

• Lust from 180 Angel has one of these in his shirt, in a Rare Male Example. Justified, as he is the personification of well, lust.
• Crossroads from Antihero for Hire wore a bodysuit that had as cross-shaped cutout in the chest area early appearances. Luckily, she realized how ridiculous that costume looked, so she changed it.
• Discussed but averted in Dumbing of Age with self-appointed superheroine Amazi-Girl. To Daisy's displeasure.
  Daisy: Did. She have. A chest window?
• In Ears for Elves, one of the High Elves of Kenn'iraheal wears a long dress with a small keyhole in the front.
• Done less than subtly with a generic superhero wearing Power Girl's outfit in El Goonish Shive. Hero, mind you, not heroine.
• Both Golden Jane and Iron Jane of the Jane Gang from Everyday Heroes wear leotards with teardrop-shaped cutouts above their cleavage.
• Girl Genius:
  • Ferretina's, the Weasel Queen's outfit from this non-canon comic. She wears a torn crop top that not only shows off her Underboobs but also has an oval-shaped cutout above her cleavage.
  • Zeetha was wearing an outfit with a cropped halterneck shirt that had a hole cut into the chest when she was selected as the Skifander envoy.
  • Zeetha's dress at the party for the various sparks while in England is a long black dress with a circular cutout at her chest that shows a lacy transparent underlayer and her cleavage.
• In Grrl Power, Halo warns Heavenly Sword that she'll be tagged as "Keyhole" if she doesn't introduce herself properly during her first appearance (even though it's a fight scene).
• Taken to absurd extremes in one Hark! A Vagrant comic in which it discusses the impracticality of Dagger's costume (which falls more under Navel-Deep Neckline), and culminates in Dagger asking Marvel if she could wear a sweater instead. They send her one....with front completely cut out so they could still see her breasts.
• Heroine Chic follows the adventures of Zoe Porter, who designs costumes for superheroes. Her best friend and roommate Laren has a part-time gig as a sidekick called "Liberteen" that sees her wearing a patriotic red-white-and-blue costume featuring a cleavage window. This is especially glaring because the rest of the costume is made of stab-proof, nigh-bulletproof material, and Laren doesn't even have superpowers to protect herself — she's just a Pilates instructor who took a few martial arts classes and picked up the sidekick gig to make some extra cash. The first thing Zoe does when she redesigns the costume is to get rid of the cleavage.
• Oglaf has this with the strip Oriel where the window itself is an Eldritch Abomination as even a Beholder is caught staring. Stare at your peril.
  "Know that when you stare into the boob window the boob window stares also back."
  • The epilogue to Oriel sees the woman from that strip meet another woman who also as a chest window abomination. When the two stare at each other it forms a Droste Image of windows that hypnotises both of them.
• In a Pixie Trix Comix sequence set at a swimwear/pinup photo-shoot where everybody else seems to be wearing Barely-There Swimwear, Zadie feels overdressed in a sundress with a cleavage window. As this strip shows, the scene also features the voluptuous FiFi in a flashy bikini-and-top ensemble that creates a sort-of cleavage window effect.
• Sandra on the Rocks is a comedy about the fashion business, so it's not surprising if this feature is present on some of the flashier outfits seen in the comic — notably on Zoé's clubbing outfit here. Which may be a little unwise of her, given that she usually opts for "stylish", and this dress reminds us that she's got quite a bit of cleavage to show.
• Saturday Morning Breakfast Cereal: "Genius": A superheroine gets one after going to the tailor and saying, "I have to fight villains all day, but I remain interested in attracting uncomplicated casual encounters."
• Spinnerette:
  • Lampshaded when discussing the design of Spinnerette's new suit, here.
    Spinnerette: [...] If you could just give it a lower neckline with some cleavage[...]
    Sahira: What?
    Spinnerette: Y'know. To distract the bad guys.
    Sahira: You have a bullet-proof fabric, and you want to cut a hole in it right over your heart?! Are you insane?
  • Super MILF used to have one as her previously costume was a rip off of Power Girl. She apparently justifies this in that her "venusian bust" generates so much heat that she requires air venting. At least, that's what she says, though she also openly makes her opinion clear that the majority of costumed vigilantes do what they do mostly for sexual thrills, so...
    • It has since been shown that it generates enough heat that people standing close to her can feel it. Dressing modestly would at the very least be highly uncomfortable. Of course, that doesn't mean that she has to use a Cleavage Window. She currently has an Impossibly-Low Neckline instead.
  • Much later, when Spinnerettes based on different comic book eras start appearing in the main universe, 90's Spinnerette appears with this trope in full force, combining it with Navel-Deep Neckline and Leotard of Power.
• In SwordCat Princess, Kathryn's SwordCat Princess costume, from her '90s Image Comics-y superheroing days, features a large cleavage window (made out of the same style of Omega she uses in her Artemis armor belt buckle).
• What's Shakin': Ms. Apple's robe has an aptly cut shape above her chest.

Web Original

• Crimson, who is at the Superhero School Whateley Academy in the Whateley Universe. She has a diamond-shaped window large enough that Phase thinks she's risking a wardrobe malfunction.

Western Animation

• American Dad!: Francine ice dance dress in the episode "Of Ice and Men" has an heart-shaped opening in the chest area.
• Ice in Batman: The Brave and the Bold has a triangle-shaped cleavage cutout on her costume.
• The Futurama DVD commentaries mention that the animators liked putting Leela and Amy in dresses with these whenever the plot required them to dress up. Lampshaded in one episode that had random time skips during a basketball game. Amy, wearing such an outfit, immediately brings attention to it as a possible explanation.
  • In "The Devil's Hands are Idle Playthings," Leela wears a long formal dress with a keyhole in the chest to Fry's opera.
  • The female version of Bender in "Neutopia."
• Justice League Unlimited:
  • Galatea has an oval-shaped opening on her white leotard, as she's basically an evil Expy of Power Girl.
  • Ice sports a triangular one.
  • Volcana's new outfit included a tank top with one in it.
• She-Ra and the Princesses of Power has a few examples, but between the art style and the intended audience they don’t technically show anything. Character designer Rae Geiger is in record as saying they can express someone’s character without having to be fanservice.
  • Sea Hawk is a male example, with a low-cut keyhole neckline befitting a dashing, swashbuckling sailor (according to himself, anyways).
  • Wrench Wench Entrapta has one created by a combination of an undershirt worn under a set of one-piece arm covers. It’s such an integral part of her character design that the space suit she builds in Season 5 has a transparent section in the same spot.
  • After scheming and fighting her way into co-rulership of the Horde, Catra gets an Evil(er) Costume Switch that features a diamond-shaped one. She keeps the window along with most of the outfit after doing a Heel–Face Turn.
  • Double Trouble’s outfit has a bifurcated version, along with various other cutouts. In this case, it accentuates that they’re a mischievous, slinking shapeshifter with an amoral streak a mile wide.
  • "Kyle", an otherwise unnamed resident of the Crimson Waste who Catra briefly bullies into being a henchman (and named after a Butt-Monkey she knows), also has one.
• In Star Wars: The Clone Wars, Ahsoka's outfit after the Time Skip in the third season is a backless mini dress with a small opening in the chest area. In the first 2.5 seasons it's an outright Age Inappropriate tube top, though.
• On Steven Universe, Sugilite doesn't really have cleavage, but has a hole in her outfit to show off Amethyst's Gem in her chest. Eventually, Amethyst herself switches from a tank top with a loose, low neck to one with a similar opening and higher neckline.
• In Stan Lee's Stripperella the title character changes her costume midway through the series. It looks similar to her old costume, the difference being her long sleeved crop top has a huge enclosed diamond-shaped cutout.
• Izzy from Total Drama has one in her signature outfit. The top is a crop top with triangle-shaped keyhole. In the second aftermath of Action, she uses hers to hold grapes, cheese and crackers, as well as the crumbs she spit out after realizing she was on the green room's TV.

Real Life

• There are probably plenty of these at model shoots and show business events, but such an outfit can be very — notable anywhere else. In May 2012, a model named Julia Orayén was hired to present some materials to the candidates at the start of a Mexican presidential debate. On camera for less than 30 seconds, her tight dress with a large keyhole was an instant Twitter sensation, and news reports worldwide declared how she had upstaged — or even "won" — the debate.
• A more mundane version is usually achieved by wearing a cardigan with only the top button fastened over an outfit that shows cleavage.
• The Japanese fashion company COMFILAX created a turtleneck with a cleavage window in late 2014. After famous Japanese cosplayer Myako took a picture of herself wearing one, a meme started of drawing characters wearing that sweater due to the inherent sexiness of this trope, the Sexy Sweater Girl, and the impracticality of exposing your breasts to the cold.
• Minoan ^note A Bronze Age civilization on the island of Crete and the Aegean islands feminine fashion, or at least either their priestesses or representations of their goddess(es), combined long, flaring, dresses with exposed breasts.

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