Full Stars Sexy Butt Lifter Boy Shorts 85% Nylon, 15% Spandex. Hand wash cold, hang dry Instantly boost butt These stretchy boy shorts instantly give you a boost with rear circular cut-outs that lift and mold your booty and a stretchy front that offers tummy control. Can be worn under cloth,Sexy, Comfortable and Invisible Shipping by USPS, usually takes 8-18 business days.