i just received the underwear today theyre so cool .-.
design is awesome, soft fabric, its mostly nylon, theres no fly but i dont have an stp or anything, i still sit.
they fit so well. the tags and printed label on the shorts say "one size", theyre a chinese brand im assuming and i was thinking i was just wasting my money on something by buying these since i couldnt buy the tommy hilfiger ones i wanted, but they ->-bleeped-<-ing fit.
like i said, im fairly large, i think, and these fit perfectly. if you are stick thin and just skin and bone, maybe not, but from maybe less than average to large these actually are one size