Part of our proprietary 5.11 Shock Mitigation System®, the Level I 9” Sock incorporates multiple zones of compression that work in tandem with 5.11 Tactical Footwear, enhancing kinetic absorption and rebound to improve your stamina, speed, and momentum control. Moisture wicking fibers keep your feet dry and comfortable in any climate, enhanced elasticity ensures a stable and secure fit, extra padding at the sole provides a layer of comfort, and a reinforced heel and toe maximize protection and durability.