Gel Liner Softens Dry, Cracked Heels Heel Sleeves. Gel Infused with Nourishing Oils & Vitamins. Includes Heel Cream Sample. One Size Fits Most. Moisture Zone Provides Continuous Moisture for up to 3 Months Studio 35 Beauty™ Heel Sleeves feature a moisture zone to provide deep & continuous softening & moisturizing of hard, dry skin. Dermatologist tested, the Heel Sleeve delivers mineral oil to repair damage skin. Use alone, or apply a small amount of the specially formulated heel cream for a complete & intensive moisturizing treatment for even better results.