Dr. Scholl's Post Surgical Therapeutic Compression socks help with tired, achy legs, varicose veins, edema, swelling, post surgical procedures and DVT (Deep Vein Thrombosis). Also great for traveling! This product is APMA Approved! 1 PAIR PER PACKAGE 20-30mmHg *MADE IN THE USA. 80% Nylon, 20% Spandex.