Oakley - SI Assault Boot 8" (Black) - Men's: This military inspired boot has a black waterproof full-grain leather upper or a desert full-grain nubuck and cordura upper for comfort and support. It features a single pull speed lacing system. Gusseted tongue blocks out debris. Low-friction, moisture wicking, and anti-microbial liner. Lightweight and responsive PU footbed and midsole. High abrasion advanced polymer for traction and durability.