They can be washed as they are reusable. Care for your heels in a simple way that will work efficiently at night as well as during the day. Open toes design makes sure that your feet breath and do not sweat. Cotton Comfort – Great for men and women alike, our heel treatment sleeves are made of breathable cotton for superior comfort. Day & Night Relief – These gel socks for dry cracked feet can be worn during the day or a night, providing you treatment for cracked heals when you need it most. Moisturizing Gel Heel Socks for Heel Swelling and Pain Relief Dry Hard Cracked Repair Vented Moisturizing Gel Heel Sleeves - Free Size You do not have to worry if the socks get dirty. The heel socks can be easily washed without you having to worry about the sock losing its properties. The socks should be hand washed in the water below 30 degree Celsius with neutral detergent and should be dried in a shade. Specification: Product Type: Silicone Gel Heel Socks Material: Cotton Colour: Multicolour Size: Free Size Packing Contain: 1 pair Silicone Gel Heel Socks for Dry Hard Cracked Heel Repair Pad.