When Under Armour introduced The Original Boxerjock Boxer Briefs, all other men's underwear was soon rendered obsolete. Smooth, lightweight HeatGear fabric - a 90% polyester, 10% elastane blend - offers four-way stretch properties for increased mobility and long-lasting shape retention. The Signature Moisture Transport System wicks away sweat and dries quickly to keep you cool and comfortable. ArmourBlock antimicrobial technology fights odors so you stay fresher longer. Smooth flatlock seam construction helps reduce chafing for even greater comfort. The updated performance waistband ensures a secure fit, while the articulated mesh fly panel provides ample ventilation. 9" inseam. Fitted design. Imported.