The Heal Float Boot is designed to lift the heel up to eliminate pressure and sores from forming. The Heel Floats over an air cavity for absolutely no pressure. The air circulation helps to aid healing of existing ulcers. Foam cushioned sides protect lateral and medial malleoli. Comes with a Water-based gel insert which lowers pressure beneath ankle. Very soft, Cozy Cloth cover reduces skin shear and wicks away moisture. Completely Launderable, reusable, and guaranteed for six months.