Jaxu Men's Leather Like Bikini T-Back Thong Underwear 80%Polyamide+20% Elastine Machine wash in soft cycle or hand wash. Do not use chlorine bleach.Do not iron. Leather Like fabric,solid black Pouch thong,T-back design M(Fit Waistline 27.5"~31.5")/L(Fit Waistline 29.1"~33.1")/XL(Fit Waistline 30.7"~35.4")