85% nylon, 15% spandex.

INSTANT AND NATURAL BODY MAKEOVER BUTTRAISER BUTTRASER BOYSHORT PROVIDES A LIGHT LIFTING EFFECT THAT IS NOT OVERBOARD. LIFT THE BUTT UP INSTANTLY. ADD DIMENSION AND LIFT THE DERRIERE NATURALLY WITH FRONT TUMMY CONTROL. SEXY, COMFORTABLE AND INVISIBLE. INSTANTLY GIVES THE BUTT A BOOST. ENJOY YOUR BEAUTIFUL CURVE AT ANYTIME. CAN BE WORN UNDERNEATH ANY TYPE OF CLOTHING. CONTENT EXTERNAL PART: 85% NYLON, 15% SPANDEX. INNER PART: 100% COTTON