Ecosox are socks woven from bamboo, a natural fiber that is super soft, moisture wicking, and doesn't harbor odor. Ecosox are comfortable and cool for everyday wear. Ecosox not only look and feel good, but are also great for the environment! The benefits of Ecosox are extraordinary! Moisture Control to keep feet dry; Odor Control helps fight food odor; help prevent blisters; Arch Support to fight fatigue and keep socks from slipping; Cushioning in key areas for maximum comfort; and Thermo-Regulating keeps you warm in the winter and cool in the summer. Why Bamboo? Bamboo is: ECO-FRIENDLY - Bamboo produces 35% more oxygen than an equivalent stand of trees. SUSTAINABLE - Moso bamboo is one of the world's fastest growing plants. ABSORBENT - Absorbs up to 60% more water than cotton. RENEWABLE - Bamboo is a grass, so once cut it can regenerate quickly without need for replanting. NATURALLY SOFT - Bamboo is softer than the softest cotton. UV PROTECTION - Bamboo naturally provides added protection against the sun's harmful UV rays.