wool and polyester blend machine washable and tumble dryable. low temperature. Do not iron or bleach. Due to the nature of the material, these socks can shrink at any time. high temperatures. The Josnown thermal sock collection for men is designed for men's winter warmth needs - thick, warm , soft, tear-resistant. wear and sweat-proof, keep your feet warm in this cold winter. Poignet de chaussettes tisses doubles haute lasticitUnlike; other calf-hugging socks, we specially designed a double knitting process on the cuffs, which will greatly improve the elasticity. socks. The thermal socks will be gently attached to your calf without any binding feeling to achieve the vein-friendly effects. All-over sponge designNatural wool provides anti-itch, odor and moisture-wicking function, also naturally regulates temperature, terry cloth full length locks in heat to keep your feet warm and dry all day. Confortable et rsistantJosnown winter thermal socks also reinforced the areas to high impact like heel and toe for endurance and durability, providing more comfort, durability and adjustment experience.