Sock: 85% Cotton, 10% Spandex, 5% Elastic 2 POWERFUL SOCKS: Package includes 1 pair of Foot Medic moisturizing heel socks for a low, affordable price. These powerful gel lined socks are sure to get your heels back to the best they have been with regular usage. Cracked heel repair is only 2 socks away, using during your favorite spa treatment. COMFORTABLE USAGE: The toeless socks are soft yet stretchy and made from a premium cotton blend. Sit back and relax so that your open toes can breathe and your heels are effortlessly moisturized. Let’s make cracked heel treatment easy! Use as spa socks or at home. Instructions in the next point. HEEL CARE INSTRUCTIONS: You may use day or night, for best results wear for at least 4 hours or overnight. Soak feet in warm water, apply cream or lotion and slip on your Foot Medic Socks. Repeat for 1 week to preserve any pedicure and soften heel calluses.