SOFT BREATHABLE FIBER: Better breathable, stretchy and softer than cotton. Please enjoy the silky touch of this men's short-leg boxer brief underwear. NATRUAL MODAL FIBER: Made from natural modal fiber, which is better breathable, stretchy and softer than cotton. Please enjoy the smooth touch of mens modal no-front-open boxer shorts. STRETCHY COVERED WAISTBAND: Comfortable fabric covered waistband with high elasticity and durability for consistent inch-free comfort throughout SHORT LEG & ONE-PIECE BACK: No front open pouch for nice shape and one-piece cut in the back creates no wedges in the middle of the trunk underwear to avoid embarrassed adjustment. We always expect your inquiry and support. Please let us know if there's any question. Your suggestion will help us to improve products and provide more great products.