NWT - Medium Grey Striped Compression socks True graduated compression designed to ease moderate aches & pains Increase circulation Improve leg and foot comfort Relief from pain, aches, and fatigue Reduce soreness, swelling, and inflammation Reduce muscle recovery time Relief for muscle stiffness and pain Prevent strain, injury, and fatigue Decrease lactic acid build-up Helps prevent varicose veins Helps prevent DVT and blood clots Relief from discomfort associated with minor/moderate edema, CVI, and venous conditions 91% Nylon / 9% Spandex. Hang dry to prevent shrinkage. Wash cold. No fabric softener or bleach.