Compression therapy is aimed at providing support to the complex network of veins in our extremities. Compression garments come in many forms, usually as stockings, socks or bandages. These are high grade elastic garments provide a higher pressure at the bottom than at the top, creating a pressure gradient, i.e. the stocking will provide more pressure at the ankle than at the knee. This pressure gradient promotes the flow of blood back to the heart, preventing it from pooling in the extremities. Compression garments usually come in different levels of compression: low (15-20 mmHg), medium (20-30 mmHg) and high (30-40 mmHg). These different levels of pressures are indicated for different conditions.