SkiL-Care™ Sidelying Leg and Knee Abductor Effectively separates legs and knees and stays in place even throughout restless nights. For post-op hip replacements. Also offers support for people with adduction contracture. Streamlined shape and adjustable soft hook and loop strap. Cushioning foam is upholstered in wipe-clean nylon. Comes with removable, water resistant washable black cover. One size fits all.