SERISIMPLE Bamboo Mesh Socks are made from Natural Bamboo Fiber which provides excellent air circulation,absorb the moisture away from your feet.  Mesh design makes the foot surface more breathable and dry,the bottom of the socks is thicker,there will be no wear on the soles of the feet,more elasticity and comfortable to wear. Our bamboo fiber invisible socks mesh breathable design keeps your feet fresh,odor-free throughout the day.Comfortable and super elastic,say goodbye to smelly feet.  Machine washable and dryable for easy care. The fabric is durable and sustains its softness even through multiple washes.Please according your shoe size to choose your right socks size. M size should fit no problem for shoes size 4 to 8. L size fit for 8 to 14. SERISIMPLE are specially flattened for a smooth fit in shoes. Heels are well rounded for gentle support and a comfortable fit. Each pair of SERISIMPLE socks is made with pride by skilled craftsmen and then carefully inspected to offer the customer the finest possible quality.