MudGear Performance Boxer Brief for Men, Breathable Wicking Base Layer Underwear Packed with Tech for Sports and Running 66% Nylon, 34% Spandex Made in USA 9 INCH INSEAM - Built for protection and support, this base layer sports underwear will wick water and prevent chafing during running STRONG CONSTRUCTION - perfect for obstacle courses like Spartan Race and Tough Mudder, but comfortable for work, travel, and all-day wear SUPERIOR 4 WAY STRETCH - great mobility for high performance in all sports including football, baseball, basketball and more ADVANCED WICKING MESH - Crush obstacles with elite level performance design BUILT FOR SPEED AND COMFORT - elevate your perforamance in your next mud run, trail race, or adventure event