Bamboo Viscose Imported Machine Wash FABRIC COMPOSITION - These mens underwear made of bamboo viscose and elastic spandex, it is silky, smooth and healthy, won't irritate the skin and won't deformed or fade by washing. Our bamboo boxer briefs refuse to be sultry, breathe freely and feature moisture-wicking due to its unique material. ONE PIECE CLEAN CUT - Just like the second layer of skin to meet the picky requirements of the butt for comfort. You won't get foreign body sensation and it can reduce the friction during exercise, no matter what kind of clothing you wear like sweatpants or professional suits won't reveal the traces. CHARMING DETAILS - 3D U-pouch with open fly provides extra roomy for men's private parts without extrusion or constraint. Tagless design brings all days and nights comfort. No riding-up design of boxer briefs for men hugs your leg, super soft and flexible, no rolling or gathering, easy to put on and take off. Plus, the logo waistband with sporty sense makes you look more energetic. You'll be more charming and confident in wearing our underwear. TRUE TO SIZE - Bamboo cool underwear for men provide different colors, different combinations, give you a different color to everyday life. These underwear for men pack are made in US Standard Size, Small=28" - 30",Medium=32" - 34",Large=36" - 38",X-Large=40" - 42",XX-Large=44" - 46", 3X-Large=48" - 50". This mens underwear boxer briefs pack is the one must have as basic essential in your wardrobe or the fantastic gift. SATISFACTION GUARANTEE - We will responding you within 24 hours if you have any questions with our mens underwear. If you are not 100% satisfied with our bamboo underwear men, we’re more than happy to offer you 100% full money-back/replace/exchange within 30 days. We listen to your feedback from our customer and fine-tune every details to ensure quality and fit.