Material: The durable waterproof rubber sole is perfect for indoor and outdoor use, and the non-slip texture and non-slip fluffy lining on the bottom give you a safe and secure footing. Memory foam cushioning: High-density memory foam insoles have good cushioning, reduce muscle fatigue, and relieve pain and stress after a hard day's work. Easy to care for: Machine washable, whether it's dust, stains or smells, just throw them in the washing machine and they'll look like new. The perfect gift: These slippers can be used as birthday, Christmas, and New Year gifts for your family and friends. Date First Available November 15, 2023