"Level 1 9"" Socks incorporate multiple compression zones that work in tandem with our Shock Mitigation System, and are designed to be lightweight and utilize kinetic absorption to improve your stamina, speed, and control. (L) Comfortable, high-performance socks Multiple compression zones for support Ideal for office, tactical, and casual wear Enhanced elasticity Multi-polymer fabric Compression zones Heel and toe reinforcements Enhanced sole padding Part of the 5.11 Shock Mitigation System Moisture-wicking Imported"