82% Polyamide, 18% Elastane Imported REDUCE SWELLING: Compression can help increase blood circulation which can prevent leg swelling. IMPROVE CIRCULATION: Compression socks can help increase blood circulation which can reduce the appearance of varicose and spider veins. SPEED RECOVERY: Compression socks provide relief to feet and legs and also reduce the rate of fatigue. PREVENT SORENESS: The circulation boost from graduated leg compression keeps the lactic acid from building up in your muscles after a long period of activity or sitting. COMFORTABLE FIT: Moisture wicking fabric, extra arch support, and padded sole make these socks perfect for travelers, nurses, and those on their feet all day.