Only as much as I want to. But I can move so fast, weight doesn't even become an issue.
Truly- I weigh the same as any ordinary human, but at speed... I am like a feather.
There are springs in these heels- Roger. -grins-
That's why they call me Springheel'd Jack.
1.5 imperial gallons of tea were consumed during the writing of this postIt's a metaphor, mate.
There aren't actually springs in there.
Listen- let me show you somethin'.
Take a good close look at the ground beneath my foot.
-he makes a quick step as if to stomp the ground, but... somehow he actually steps off of the air and not the ground-
-there was a brief gust of air flowing out from around the foot- Y'see- if I make my foot move fast enough, sometimes- I can essentially create extra ground out of compressed air.
But- I have to be quick. Quicker than the eye- quicker than the mind.
1.5 imperial gallons of tea were consumed during the writing of this postIt's part of it at least. I must say that this can't really grant flight.
There needs to be something for the air to move against.
If there's only air beneath it- it won't work.
-Roger manages to just... kick the ground really really hard-
1.5 imperial gallons of tea were consumed during the writing of this post-nods- Aight. You've had a bit of a rest.
Lets say- run back to the room. Try an' get on the roof without touching the ground between the forest's edge, and the edge of the roof.
Without using something like a slingshot.
Ready? I'll give ya the headstart. -points in the direction of the room-
1.5 imperial gallons of tea were consumed during the writing of this post

-chuckles a little- Ah, y'sure? You look like you could fill the Thames with how much y'sweatin'.
-scratches his chin a little- I mean, I could keep goin' but that's because I have no concept of stamina.
1.5 imperial gallons of tea were consumed during the writing of this post