Silipos GeLuscious Moisturizing Gel Socks for Men are made from bamboo charcoal. The bamboo in the socks contains many pores making it excellent for absorbing odor-causing chemicals and controlling temperature. These gel moisturizing socks for men will get rid of cracked, dry, and callused skin caused by everyday exposure to harshenvironment conditions. The manufacturer recommends using these socks for 20 minutes, 3 times per week up to 40 treatments. Sock material content includes 48% Bamboo Charcoal Rayon, 42% Polyester, 8% Nylon, 2% Spandex. Use mild soap for washing and hang to dry. Includes one pair of socks that fit up to size 13. Non-returnable hygiene item.Silipos GeLuscious Moisturizing Gel Socks for Men Features:Softens dry cracked and callused feet.Bamboo absorbs odors and controls temperature.Silipos GeLuscious Moisturizing Gel Socks for Men Specifications:Size: one size fits up to size 13.Includes: one pair of bamboo charcoal gel socks.Material: 48% bamboo charcoal rayon, 42% polyester, 8% nylon, 2% spandex.Made in: USA.Care: hand wash, air dry.Color: charcoal.