These men's/unisex/women's TX 3-Pack Tennis Crew socks from Thorlos are constructed with cotton and nylon material for a great fit. Thorlos proprietary moisture management helps prevent blisters and fungal growth. Thorlos helps prevent both tissue breakdown and painful calluses and bunions. Thorlos acts as an interface between shoe and foot, minimising shearing. Thorolos stimulates better circulation (blood flow) into and out of feet.