Heelbo® "Premium" Heel and Elbow Protectors are made with a unique viscoelastic polymer pad that reduces pressure by up to 38%. This pad is held in place by a circumferential, stretchable, soft acrylic terry loop material inside with a flat knit on the outside. The foam pad inside of the Heelbo® "Premium" Heel and Elbow Protector is bar-tacked to the material at two points to prevent slippage, yet allows the person to move the joint without a shearing effect on the skin. These protectors are breathable, easy to slip on and off, machine washable, and retain their shape after repeated use. Remove gel pad for laundering. Available in X-Large, Large, Medium and Small sizes, protectors feature a color-coded system that allows you to determine the size quickly.