SILKWORLD Men's Pouch Boxer Brief Pack of 4 Black US Large Material: 95% Modal 5% Elastane (soft comfortable version of spandex) U Contour pouch provides support,body will great fit,not too baggy and not too constricting. 2 Button Down Fly Design Opening / Mid Thigh Coverage Comfort 3.5cm seamless broadband belt design.Have a super elastic,comfortable fit seamless waist,comfortable and natural Machine wash cold. Do not bleach. Because of the Asian size is about 2 size smaller than US size.For example: usually the Asian L is equal to the US Small, and our item tag is printed in Asian size only. When you receive the item,please feel ok, it is just your size