Thigh Length Anti-Embolism Stocking, Small, Regular, Upper Thigh Circumference less than 25"; Calf Circumference less than 12"; Length Gluteal Furrow to Bottom of Heel 29"-33"; Neutral Top, Yellow Toe, 12 pr/cs (563-02)All stockings in each size are woven precisely alike to maintain gradually decreasing pressures up the leg with controlled compression graduations conforming exactly to the subtle curvatures of the leg at points recommended by medical research. Nylon full foot with inspection toe. Compliance with precise medical standards is assured by tests on the LEMM .