Jaxu Men's Pouch Brief Size M(Fit for Waistline 27.6"~31.4")/Size L(Fit for Waistline 29.1"~33.0")/Size XL(Fit for Waistline 30.7"~35.4") 80% Polyamide + 20% Elastine Machine wash in soft cycle or hand wash. Do not use chlorine bleach.Do not iron. Elactic fabric Pouch and over hips design