Possibly subverted in Redwall; on one occasion the Big Bad Badrang cuts a random minion's belt when he finds himself in need of a piece of cord, and everyone sniggers when said minion's kilt drops off. On two occasions, prisoners have suffered a Shameful Strip, which presumably wouldn't matter if they didn't consider clothing important in some way. In contrast, the cartoon show followed this trope; as well as most of the characters only wearing shirts, it showed Skalrag wearing variously only a cloak or nothing at all, and unusually depicted the female character Trefoil with an unclothed lower half as well.
Now, to be fair, a kilt is a kilt. They have more things in common with habits and (naturally enough) skirts than with trousers.
In the Little Critter book series written and illustrated by Mercer Mayer, Little Critter can be seen wearing a shirt but no pants in the book When I Get Bigger, In the book I Just Forgot Little Critter can be seen wearing a rain coat but not only forgets to wear his boots, he forgets to wear his pants. Also in The New Potty Little Sister takes off her diaper in order to go potty. Also in the book I Was So Mad Little Critters animal friends who are playing baseball can be seen wearing shirts but no pants or shoes. Now days in the recent Little Critter books, Little Critter wears overalls and isn't seen half dressed or undressed anymore.
In the chapter-heading illustrations of Garry Kilworth's Welkin Weasels series, Montegu Sylver appears fully clothed including shoes, though he is apparently wearing nothing but a cloak on the cover illustration and is described in the text as not needing anything more than a cloak since he has fur. Scruff and Maudlin wear only jackets and hats. Bryony Bludd wears a full skirt which would not look out of place in the Victorian era the books are based on except for the fact that she is apparently topless except for a very large neck-bow. Mayor Jeremy Poynt fits the "jacket and hat" rule, with the addition of spats - but no shoes.
Koziolek Matolek, from the Polish children's book series of the same name, is a shirtless, anthropomorphic goat.
The Tale Of Peter Rabbit is a book written by Beatrix Potter. The character Peter Rabbit can be seen wearing a blue jacket and shoes but he doesn't wear pants and loses his jacket and shoes in Mr. Mc Gregors garden while being chased by Mr. Mc Gregor causing Peter Rabbit to be naked, Mr. Mc Gregor hangs his jacket and shoes on a pole to look like a scarecrow. Later that night as Peter Rabbit gets home, his mother asks him where his jacket and shoes are.
The Tale Of Benjamin Bunny is a sequel to Peter Rabbit written by Beatrix Potter. Benjamin Bunny can be seen wearing a jacket and boots but no pants, he visits Peter Rabbit wearing a handkerchief. Benjamin Bunny and Peter Rabbit go back to Mr. Mc Gregors garden to get back Peters jacket and shoes which got wet and shrunk in the rain.
Destined to Lead: Resurge is this for most of book one, and continues to be even after coming into possession of a chripl-skin vest.