Medline Thigh-High Anti-Embolism Stockings provide a tailored, contoured fit with just the right amount of gradient pressure to optimize patient comfort. Pressure is greatest at the ankle and gradually reduces throughout the length of the leg (15-18 mmHg). Made of 80% nylon and 20% spandex for strength and stretch. Color coding at the toe and top band denote size and length for quick identification. A measuring tape is included in each bag for help in finding the right fit.