- Size: 38/39 • Soft flannel outer material and lining, no shedding fur. • Open design, breathable and easy to slip on, ideal for hot days. • High elasticity memory foam sole, with sufficient cushioning and support. • Non-slip wavy outsole, safe on wet floors. • Does not damage the floor, including wood and ceramic tiles. • Excellent noise insulation, does not interfere with family rest.