The Hands Free Slip-Ins sneakers are made from breathable functional mesh in the upper material. The Heel Pillow keeps the foot securely and firmly in place, and in combination with the Air-Cooled Memory Foam insole, the lightweight and responsive ULTRA GO cushioning, and the multi-layer flexible Flex Pillars traction layers (for cross-training), they provide an exceptionally soft and exclusive wearing comfort. Shoes can be washed in the washing machine; please follow the care instructions.