CozyWow Men's Breathable Bamboo Rayon Business Crew Dress Socks (5-Pack) Materials: 80% Bamboo Fiber, 20% Nylon (Bamboo fiber makes socks soft, durable and breathable.) Machine Washable Size Fit: S-M, Mens Shoe size:US 6~9 CozyWow mens crew socks are made of 80% bamboo fiber. Bamboo fiber has the property of antibacterial and will help with many odor problems. Also it makes the socks breathable absorbent, antibacterial, deodorant and durable to keep your feet dry and cool. The 20% polyester added to the eslasticity of the socks, making it soft, comfortable and stretchy. Compared with the cotton socks, the bamboo fiber socks are more durable and sturdy. Your feet will not smell after a whole day's wearing. Suitable for many occasions formal & informal CozyWow is a US registered brand, we promise to provide our customers with better products and service You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!