The Boxer Briefs are especially developed for everyday use. The Must-have Range fabric is made of our premium Bamboo Viscose. The fabric is wrapped around the waistband to guarantee the same soft feeling everywhere the skin touches the underwear.Details. 4 inch inseam that stays put. Material. 95% Bamboo Viscose & 5% Spandex. Delivery. Fast Shipping in the USA (delivery 3-7 days)