Allegro Sheer Support knee highs are exceptionally sheer. They feature a wide soft top band and a reciprocated heel and balloon toe for added comfort. Superlative compression hosiery does not have to be expensive -- the Allegro brand provides quality comfort and support identical to the famous brands that cost two to three times more. This stocking provides 15-20mmHg of gradient compression to help improve blood flow, prevent minor ankle, leg, and foot swelling, and reduce the discomfort caused by minor varicose or spider veins. Ideal for wearing on long flights or automobile trips and for people who spend time on their feet. Woven from 80% nylon and 20% spandex in the USA.