- Size: 38/39 • Soft flannel outer material and lining, no shedding fur. • Open design that keeps feet cool and dry. • High elasticity memory foam sole, with enough cushioning and support. • Wavy outsole that prevents slipping on wet floors. • Does not damage the floor, including wood and ceramic tiles. • Excellent noise insulation, does not interfere with family rest. • Perfect for hot days, easy to slip on. • Perfect fit after several uses, relaxes the feet after a hard day.