People on bed rest or those receiving pre-and post-surgical care will benefit from wearing a pair of Mediven Thrombexin Stockings. The anti-embolism stockings prevent blood from collecting in the lower extremities. The Thrombexin stockings stop clots from forming by offering gradient pressure (18 mmHg) to the legs, allowing the blood to circulate. The closed-toe stockings come in white. There is an inspection hole on the soles of the stockings. Choose a pair that is Calf Length or Thigh Length. The thigh length stockings have a silicone border that keeps the stockings from falling. The Thrombexin stockings come in 4 sizes: S, M, L, and XL.