Avidlove Men Underwear Breathable Ice Silk Underpants Soft Briefs 7 Pack Material:Ice Silk M = US XS : Waist 25.7"-35.9" Length 6.2" L = US S : Waist 27.3"-38.2" Length 6.6" XL = US M : Waist 28.9"-40.6" Length 6.8" XXL = US L : Waist 31.2"-43.7" Length 7"