These are D.HEDRAL underwear for dudes. They provide "angular support" to lift and tighten your butt cheeks. Depending on the your size, the underwear uses a different angle of lift to give you just the right amount of firmness. Me? I don't need no stinkin' underwear to make my booty look good because I WORK THESE CHEEKS OUT. I can even make them dance up and down individually. Watch this. *booty-pop, booty-pop, shake shake BRAPPPPPTT!* "Did you just?" Oh boy. I'd make myself scarce if I were you.
Thanks to Nicholas, who makes his ass look good the old fashioned way: cowboy chaps and a thong. Aww yeah!