The outer fabric of this model is made of softshel fabric, and it is waterproof. Polar fleece has been used as inner lining and there is silicone fiber between the polar fleece and outer fabric. The inside of the hood is similarly made of the fiber polar fleece . It will protect you from the cold. It has an elegant modern outlook. It has been produced in narrow cut. There are 4 heating systems in the inner side. This system works with power bank. With a power bank of 20 000 mAH capacity, the heating system can work for about 8 hours. It is a special produc. The heating system of our products is guaranteed for 1 year.