Shaper Panty Shorts with Removable Silicone Buttock Inserts / Enhancers! (Size Small) 2 Silicone Pads 100 % Silicone buttocks enhancer waterproof. Panty: 85% Nylon. 15% Spandex. Washable and re usable - wear these buttocks no matter what you do! silicone pads are removable for garment washing. Each pad has its own pocket so it won't move around