Tips - XS-XL is suitable for small dogs, 2XL-4XL is suitable for medium and large dogs. The bust of 2XL is 64 cm. Please refer to the size chart before buying, measure your dog's bust and add 2-4 cm to choose the size. If you are unsure, you can tell us your pet's chest, back, and neck measurements, and we will help you and we are always responsible to our customers. Easy to wear - This dog jacket has high-quality resin with a large zipper on the back, it is not easy to scratch and wear, and the large zipper is also easy to put on and take off. Comfortable & Versatile - The harness design on the back is reflective and adjustable, it can be attached to various dog leashes. You don't need to buy extra chest straps, you can use them together as a combination suit. Waterproof - The dog coat is made of waterproof fabric, good wear resistance, suitable for rainy days. The inside is made of composite fleece, warm and comfortable, and thanks to the exquisite craftsmanship and moderate thickness, your pets will not feel heavy. Windproof - The shrinkable high collar can effectively prevent wind. The elastic band in the abdomen is designed to better fit the body to keep warm. The reflective strip design on the back effectively ensures the safety of the dog walking at night.