PPU 1305 Multi-Strap Jockstrap nylon Machine wash warm, only non chlorine bleach when needed. Tumble dry low, cool iron if needed. Wash dark colors separately. Refer to size chart to ensure you choose the correct size. Composition: 93% nylon, 7% spandex stretch microfiber feels smooth and sleek against your skin. Network of straps forms an ultra sexy jock. Waistband held together in back by metal ring. Extra rear straps provide ample butt boost.