The minute you put on CEP low-cut socks your feet will feel recharged, and ready. The dynamic compression over the instep and flexible elastic toe-box mold to your feet without restriction. Targeted compression on the mid-foot helps prevent foot swelling that can emerge after a couple hours of activity, and also helps alleviate pain associated with overused injuries like plantar fasciitis. CEP high-tech compression fibers, form a barrier between you and your shoe. The material molds to your feet like a second-skin, giving you a perfect shoe fit and guaranteed blister prevention. Fabric: 89% Polyamide/11% Elastane