Avidlove Men's Sexy Lingerie Cotton Underpants Sexy Bikinis and Briefs,Gray,XL = US M 100% Cotton Brand Name: Avidlove Cotton material , comfortable and healthy M size:waist is 27.5"--29.8" L size:waist is 29"--31.4" XL size:waist is 30.6"--32.9"