- Size: 40 • Lined interior with synthetic leather that provides softness, comfort, and warmth during the cold months. • High-quality PVC non-slip sole, suitable for most cold occasions. • High-density gel-infused memory foam that offers thick and stable support, adapting to your feet for lasting comfort. • Versatile colors that match any outfit, ideal for both indoor and outdoor use. • Design without zippers or laces, easy to put on and take off.