Quite possibly the most comfortable socks you'll ever wear, the Level 1 Performance Ankle Socks are designed to accompany the short boots of the 5.11 Tactical Series family. Constructed with multiple zones of compression and fabric blends for increased blood circulation, heat reduction and moisture wicking, the Level 1 Performance Ankle Socks are an integral part of 5.11's footwear Shock Mitigation System. In combination with short 5.11 boots, the Level 1 Performance Ankle Socks rounds out a system to protect your feet and keep them dry and comfortable. This is a great sock for any athletic event and is perfect with running shoes. Made of 80% Coolmax, 8% nylon, 8% spandex, 4% rubber, the Level 1 Performance Ankle Socks has multiple zones of compression for cushioning and support. Even after repeated washings, these Performance Ankle Socks keep their shape. The Level 1 Performance Ankle Socks fits all sizes comfortably under the most rigorous of activity. Imported.