JINSHI Men's Underwear Comfort Soft Bamboo Long Boxer Briefs 95% bamboo fiber+5% spandex Classic fit Machine wash, tumble dry Boxer briefs closure Elastic waistband and a functional open fly provide comfortable support Attention: size improved from October, 2017. New size fits:M(32''-34''),L(36''-38''),XL(40''-42''),2XL(44''-46''),3XL(48''-50'').