7or9 New Comfort Series —— Mattress flats: The continuation of the patented air-touch Foam comfort technology. More advanced technology gives the feet a 360 ° gentle hug. Pressure-relieving latex and a shock-absorbing cushion core provide double support, as a soft and rebound small mattress is laid in the sole of the foot, allowing for natural stretching of the feet. Like lying on the mattress. High-quality Calfskin: Made from high-quality leather that is durable, soft, and smooth. They often feature a sleek, sophisticated design, and are known for their comfortable fit and exceptional quality. Some common features of calfskin shoes for women include a leather lining, leather insole, leather sole, and a zip closure or slip-on design. These shoes are perfect for both casual and formal occasions and can elevate any outfit with their luxurious look and feel.  Accessories for DIY: Nearly 100 detachable accessories including buckles, laces, back clips, and ankle chains which can be applied to toe, back ankle, and other positions. Production Information  Fabric calfskin   Toe   Air-touch Foam(Patent)  Lining  Lambskin  Accessory  Buckle Only  Pad core  3D Shock-absorbing  Heel Flats  Insoles  One-piece wide pad  Height 3.5cm