LIMITED EDITION! Super lightweight and guaranteed blister-free, our Steigen running socks are just perfect for your hot, sweaty runs. - Super lightweight fabric and airflow top mesh for max wicking and breathability - Seamless construction - Forefoot pad for comfort and graduated arch supports - One size fits all, but comes in 1/2 and 1/4 length ankle height Materials: 80% microfiber nylon, 20% lycra For washing, we recommend turning your Steigen Running Socks inside out and using cold water.