Sage Prevalon Heel Protector I Protect vulnerable heels and prevent bedsores. One heel protector per package. When a person is bedridden, the pressure of the heels on the mattress can cause bedsores. The unique design of the Prevalon Heel Protector, also referred to as the boot, comfortably keeps the heel lifted off the bed. Soft, comfort-grip interior wicks away moisture and keeps the foot and ankle in place, ensuring the heel stays elevated. Used in hospitals across the U.S. as well as senior living, long-term care facilities and home care settings. Low-friction nylon exterior easily slides over bed sheets. Not made with natural rubber latex. Stretch panels adjust to fit calf circumferences 10 in – 18 in (25 cm – 46 cm). For use while in bed. DO NOT stand or walk while wearing due to fall risk.