The Thorlos Small Women's Experia Micro Mini Crew Running Socks are made of nylon, Lycra® and polyester mesh for breathable, comfortable wear with COOLMAX® fabric technology to help keep your feet feeling dry. These socks feature Thorlo pads in the balls and heels and lightweight Achilles tendon pads for cushioning. Made in USA. Thorlos Small Women's Experia Micro Mini Crew Running Socks Black - Athletic Socks at Academy Sports