The Energy sock is designed with a blend of materials similar to the Dynamic sock but is thicker and offers greater comfort for running and walking. It has a cushioned underfoot component that provides added comfort. The sock is slightly higher at the back of the foot, which helps it stay in place nicely in your shoes. Coolmax® is a high-performance polyester-based fiber that dries quickly and facilitates evaporation to keep your feet dry all day. The Energy sock is breathable, low-cut, and equipped with arch support, making it perfect for movement. Materials: - 42% coolmax® / 42% cotton / 14%