3.81 Oz. Designed for fashion men, stylish and personalized. 100% Polyester. Lightweight fabrication for a comfortable fit. Covered black nylon elastic waistband ensures consistent comfort throughout. Three custom areas on the back of the briefs. Two-sided fleece finish. Size: XS, S, M, L,XL, XXL, XXXL. Machine wash: cold (max 40℃ or 104℉); Non-chlorine; Iron with cover; Do not tumble dry; Do not insolation.