David Archy Men's Breathable Bamboo Rayon Boxer Briefs with Fly in 3 or 4 Pack 95% Bamboo Rayon / 5% Spandex Imported ABOUT THE TAG: Fiber extracted from plants is called Rayon which is the terminology of fiber species. Bamboo rayon fiber, as one of the subdivision of Rayon, refers in particular to fiber extracted from bamboo, which just is one kind of rayon. However, we are requested to strictly indicate the content of fiber species, like Cellulose, Rayon, Cotton...on the care labels. VERSATILE PERFORMANCE: Made from Bamboo Rayon--a kind of cellulose fiber extracted from bamboo, the bamboo rayon underwear for men is featured with good air permeability and instant water-absorbing. LONGER LEG LENGTH TO AVOID RUBBING AND RIDDING UP: With 4.5 inch & 8 inch-long leg length, the mens pouch underwear in pack does better than other underwear in regards to the ride up problem. 3D ULTRA U-POUCH FOR ULTRA ROOMY: Ultra U-pouch design added onto the sexy under pants to provide more space for men's private parts without extrusion or constraint. It helps make you confident and sexy wearing our big pouch boxer briefs. ONE-PIECE CLEAN CUT: Improvement in the back that no wedge in the middle of the trunk underwear to avoid embarrassed adjustment; Care you in a thoughtful way. FUNCTIONAL FRONT FLY: We make it ultimate soft and comfortable without sacrificing basic purpose. The boxer briefs with front fly can meet all your demand in various aspects.