Sheer Therapy Women's Dress Compression Stockings are the perfect complement to a pair of dress slacks. The socks come up to slightly below the knee, covering the calf, to offer optimal compression. The socks prevent and relieve leg soreness, foot and ankle swelling, and improves circulation in the legs. There are four color options -Black, White, Tan & Navy- and the socks are available in 4 different sizes (S, M, L, & XL).