UnderCoverComfort OTP Socks (TacticalSox) are manufactured to provide support and comfort for the feet . These socks are manufactured with a variety of fibers such as Coolmax, Lycra, nylon, wool, acrylic, elastic and Twaron, a lightweight, strong synthetic fiber that provides the added protection to the toe and heel. The other fibers provide for a soft, breathable sock that has a full range of motion. Also available are TacticalSocks that protect against blisters. The Anti-Blister System combines the proper yarns with advanced fiber elements to create the ideal system to eliminate foot discomfort and create a blister-free system, caused by moisture and friction.