Cardinal T.E.D. Anti-embolism Stockings, Large / Regular, Thigh High, White Inspection Toe prevents the damaging effects of venous distension that occurs during surgery. Clinically proven graduated pressure pattern of 18mmHg at the ankle, 14mmHg at the calf, 8mmHg at the popliteal, 10mmHg at the lower thigh and 8mmHg at the upper thigh 1, 2 ply gusset and uninterrupted band at thigh. A pressure break at the popliteal Designed to reduce venous stasis in the entire leg. The clinically-proven graduated compression pattern from ankle to upper thigh helps ensure optimum blood flow velocity.