Jaxu Men's Spandex Printed Thong Underwear 80%Polyamide+20% Elastine Machine wash in soft cycle or hand wash. Do not use chlorine bleach.Do not iron. Thicken Spandex fabric,geometric pattern Pouch bikini,T-Back,thong design M(Fit Waistline 26.7"~30.7")/L(Fit Waistline 28.3"~33.1")/XL(Fit Waistline 29.9"~35.4")