Gum Rubber soleCOMFORTABLE & WARM: High-quality and comfort artificial plush fleece lining that encompasses your feet very well and offers lasting marshmallow-like comfort and warmth for tired toes and heels. The insole is constructed with memory foam and sponge to provide superior comfortability. Cotton inside can absorb moisture and perspire, making the skin of your feet dry and comfortable, ideal for autumn and winter.ANTI-SKID DURABLE SOLE: Soft sole, no damage to wooden floors, carpets or tiles. With slip-resistant texture on the bottom, secure footing on any indoor or outdoor surface.The sole material is not easy to deform and odorless.MULTI FUNCTION & EASY MAINTENANCE: Multiple color sizes to choose. Suitable for indoor, house cleaning, cooking in the kitchen, playing with your kids, outdoor, walk the dogs, garden walk, long airline flight etc.HOLIDAY GIFTS: These slippers are also can be a great gift in some holidays, such as Thanksgiving, Christmas. Their tired feet deserve a wonderful relax when back to their sweet home.CUSTOMERS ARE OUR PRIORITY: If you’re not thrilled with your purchase for any reasons. Just tell us and we will do our best to give you the most satisfactory solution.