MORE BREATHABLE: Vented breathable fabric allows day use. Repair dry, cracked heels when on the go! HOW THEY WORK: SmartGel Technology features an M-Gel pad at heel that releases therapeutic oil and vitamins to treat skin. VITAMIN-ENRICHED: Includes Vitamin E, F forte, Shea Butter, and Aloe Vera for softer, healthier, supple skin. FOR BEST RESULTS: Wear heel sleeves every day for 7 days, then 2-3 times per week or as needed. For a more intensive treatment, use with a skin moisturizer. Two (2) pair. SIZING: Women's up to 10. Men's up to 8. NatraCure Intensive Moisturizing Gel Heel Sleeves help transform rough, dry, cracked heels to be more soft, supple, and healthy. One moisturizing M-Gel zone is located directly over each heel to slowly release medical-grade mineral oil that helps moisturize and rejuvenate damaged skin. Just slip on these comfortable heel sleeves and wear them at rest, work, or play. For best results, wear your gel heel sleeves while sleeping every night for one week. Then wear them for a minimum of 2-3 times per week, or as needed. May be used alone or with a moisturizer cream of your choice for a more intense hydrating treatment.