5.11 Tactical Series has added a new color, new style and value packs to its sock collection. Joining 5.11's original black and white 6-inch and 9-inch socks (in traditional Level I and the extra-cushioning Level II thicknesses), they are now available in light brown coyote. 5.11's Level I Performance Ankle Socks, in black and white, are ideal for athletic shoes. All Level I and Level II socks feature 5.11's proprietary Shock Mitigation System with 12 zones of compression for comfort and performance, plus moisture-wicking Coolmax and spandex for lasting support.