SKIMS Recycled Swim Cut Out Mid Waist Boy Short - Onyx - Large SKIMS Recycled Swim Cut Out Mid Waist Boy Short – Onyx – Large The best boy short for your butt. Made with our signature second-skin fabric that molds to your body and never loses shape, this super comfortable panty makes you feel like you’re wearing nothing at all. Features a full coverage cut with a flattering high waist and a 100% cotton gusset. Fits true to size.