STYLISH DESIGNThis item is newly developed by our designer, purpose for chilly winter wearing to protect your pets from low temperature, it's lined with thick fleece, soft and warm, while the outside is very fashionable, esp. suitable for Christmas. The main difference between the old version and the new one is that the upgrade version will be thicker than the old one, more suitable in some cold area. The material they used is different. The old one is flannel while the new one is a polyester sherpa.Comfort and DesignThe dog hoodie is designed specifically to keep your dog warm while allowing them to be the active dog that they are.Thicker fleece innerThicker fleece can effectively help your pet stay away from the cold, and also contains a small opening on the upper back of the dog coat for dog harness users