CEP Ultralight Men's No Show Socks, Black/Light Grey - Size IV Ambitious endurance athletes activate their full power with these thin, yet durable summer socks. Wear these ultra-light socks in your sports shoes and enjoy all the benefits. Thanks to their anatomical design and skin-tight fit, these summer socks wrap around your foot like a glove and don’t slip. The close fit of the Ultralight Compression No Show Socks with their proven blend of materials helps prevent blisters. Anatomically positioned padded zones integrated in the foot provide reliable cushioning. The proven blend of materials promotes optimum moisture management for your feet. These super thin and lightweight socks help you reach peak performance in summer. The carbon-infused yarn is extremely light. It adds strength to the socks and increases their elasticity. Socks with Smart Carbon are ideal for athletic activities on hot days because they keep your feet cool.