9-12 mm Hg Lite Support is ideal for anyone wanting great looking and feeling legs, especiallythose who sit or stand for long periods of time. Prevents mild legfatigue and discomfort and ankle and foot swelling by improvingcirculation in the legs. Helps prevent varicose veins and spider veins.Elegant in its sheerness, this support hose gives comfortable,ultra-light support while still remaining fashionable. Feels and lookssilky smooth. Knee High features a comfortable top band and sheer toe.Nylon/Spandex. Lightweight graduated compression support legwear helps prevent and relieve tired, aching legs, mild ankle and foot swelling, and mild spider and varicose veins.