Jobst Anti Em Knee Hi Large Regular Closed Toe White Hand Wrist Exercise Products Firm polyurethane foam HERH6036TW Firm polyurethane foam White background behind the gradations numbers and text assures high contrast for added readability and resolution * Scale reads 1¯ increments Designed to reduce the risk of Deep Vein Thrombosis (DVT) commonly known as blood clots * Specially designed as a Thrombo Embolic Deterrent stocking JOBST Anti Embolism applies gradient compression highest at the ankle and gradually decreases this pressure up the leg to improve blood flow * It is improved blood flow that helps reduce the risk for DVT * JOBST Anti Embolism Knee Highs and Thigh Highs are for patients who are resting in bed or otherwise immobile (non ambulatory) * JOBST Anti Embolism Knee Highs and Thigh Highs are designed to be worn by both men and women * Accurate gradient compression therapy minimizes the risk of DVT (blood clots) * Soft breathable fabric is lightweight and comfortable * Latex free formula helps avoid allergic reactions sometimes associated with other hosiery products * Reinforced heel is designed for long lasting wear * Calf Circumference: 15 18 * Length from heel to bend of knee: 14 17