Prevalon Pressure Relieving Heel Protector with Integrated Foot and Leg Stabilizer Wedge. If you are caring for someone who is confined to bed or has impaired mobility, they may be at risk for heel pressure ulcers. Prevalon can help prevent heel pressure ulcers by lifting the heel off of the mattress, minimizing pressure. The universal size means a secure, comfortable fit. Trust the #1 hospital brand of heel protection! Features Include: Open, floated-heel design Adjustable stretch panels Ultra-soft, open-weave fabric Pillow-style cushioning Intermittent Compression Device (ICD) access ports Ambidextrous Latex-free Foam wedge Quick-stick fastening. Recommended for patients with calf circumference of 10in-18in (25cm-46cm).