Jobst Anti-Em Waist-Hi Large-Long (toe: Blue) (pair) Applies a contoured pressure gradient greatest at the ankle and gradually decreasing to the thigh without tourniqueting or strangulation of the venous return * An accepted prophylaxis for minimizing the risk of thromboembolism in patients due to prolonged bed rest * Knee High - Nylon * Measure calf at circumference at greatest portion * Measure length from base to heel to bend of knee - if possible measure in standing position *