?HIGH QUALITY WATERPROOF WARM MATERIAL: Polyester,Cotton. It’s not only avoiding the freezing rain or snow to moisture dog, but also can keep warm when dog to wear the jacket, not shivering.Please read the size chart carefully before buying. If you have any questions about the size, please contact us by email, and we will reply to your message within 24 hours.?BUILT-IN DOG HARNESS:This is a very nice jacket with a built in harness, which is very convenient.The adjustable dog harness can be used with various dog leashes.?SPECIAL DESIGN FOR DOGS. Our coats zipper is made by large resin, it's not easy to scratch and wear, and there is a layer of fabric on the zipper, to prevent the dog's hair from being pulled in and hurting the dog when the zipper is pulled. In addition, we put reflective strip sewn on the coat to help you to find your dog in night.?ZINC ALLOY TRACTION RING. In winter, during walking the dog, the traction ring is prone to break. Therefore, we choose the seamlessly welded zinc alloy but not traditional fragile and non-durable steel to make traction ring. It is strong, durable and not easily broken.?WINDPROOF ELASTIC BAND. Elastic adjustment strap that fits the abdomen and hind feet make the clothes closer to the dog’s body, it helps your dog to resist cold wind, keep warm outdoors.