Jobst Anti Em Knee Hi Medium Regular Closed Toe White Jobst Ultrasheer 30 40 ThighHi Comfortable nylon upholstery with back 14283 Comfortable nylon upholstery with back pocket * SPECIFICATIONS: Seat Width: 22 Seat Depth: 18 Seat to Floor Height1: Adult 21 Back Height: 16 Back Style: Fixed Overall Width w Arms: 30 Overall Depth: 33 Weight Capacity: 450 lbs 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: 12 15 * Length from heel to bend of knee: 14 17