Under Amour Men's The Original 9" Boxerjock Boxer Brief Black/Red 90% Polyester, 10% Elastane Imported 90% Polyester/10% Elastane Lightweight boxer brief in HeatGear fabric featuring logoed waistband and contoured mesh pouch with front fly Four-way stretch fabrication for enhanced mobility Moisture Transport System wicks sweat and dries quickly Anti-odor technology prevents the growth of odor-causing microbes