David Archy Men's 4 Pack Basic Solid Ultra Soft Underwear Bamboo Rayon Trunks 95% Bamboo Rayon and 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. Made from Bamboo Rayon: Featured with good air permeability, feels smooth and soft, comfy to wear Upgrade U-Pouch Design: Ultra U-Pouch provides more space and keeps man's private area comfortably and isolating male anatomy from inner thighs Wide and Stretchy Waistband: Filament nylon Waistband with Metallic Look, with attractive brand logo embellishment and waistband does not roll up Perfect Gift for Men: the soft and comfy trunks are breathable, soft and overall comfy for wearing NOTE: Please kindly refer to the size chart to find your fit; Please do take note it's short-leg Trunks underwear, not long-leg boxer briefs. Please check carefully before purchase