Heel Grippers prevent your heel from rubbing up against the back your shoes, which can cause blisters and calluses. Heel Grippers add extra life to your socks and hosiery as well. Our Heel Grippers are made of suede and are ultra slim, elegant, and discreet. The non-slip grip on Heel Grippers holds them firmly for continued use. Heel Grippers are easy to install, just take them out of the package, slip them into your shoe and go!