High-quality materials?: The outer layer is made of waterproof material and durable polyester, and it feels smooth and soft. The inner layer is lined with fleece and cotton to effectively maintain the dog's body temperature. Reflective: The dog jacket is designed with reflective strips on both sides and ends of the jacket to improve visibility and keep the dog safe in low light conditions outdoors and late at night. Easy to wear: The dog's warm jacket is designed with a high-quality smooth zipper, and there is a compartment under the zipper to prevent the dog's hair from being caught and hurting the dog's skin. Easy to control: There is a hidden seat belt hole on the back of the dog jacket, which can open the cute dog paw pattern. You can insert a leash into the hole to connect the vest seat belt. Product Description: Reflective stripThere are reflective strips on both sides and ends of the coat, which can improve visibility on cold winter nights and protect the dog's outdoor safety. Adjustable necklineThe retractable strap on the neck allows the dog to better protect itself from the winter cold. Adjust the size of the neckline according to the dog's neck circumference to better wrap the body and keep warm at all times. Hidden harness holeCute and innovative dog paw patterns make our coat more attractive. After opening the pattern, you will find a hidden leash hole, then you can connect the leash through the hole to better control the dog outside and prevent it from running. Smooth zipperYou can slide the zipper to help your dog put on or take off the coat, which is very convenient. There is a compartment inside the zipper to prevent the dog's hair from getting caught when putting on or taking off the jacket. Quality materialsMade from high quality materials, the outer layer (polyester) is waterproof, windproof, snowproof, durable, smooth and soft to the touch. Filling layer (cotton) - excellent heat retention and moisture absorption. Inner layer (fleece fleece) - thick and close-fitting, heat retention is 4 times that of regular cotton, comfortable and light to wear. Size?: You should use a soft ruler to make a circle around the back of the dog's front legs, which is the widest part of the front chest. Remember to reserve at least 1-3 cm of space to ensure comfort. The size is measured manually, there may be 1-3cm error, please understand. XL has a bust of 20.4 inches/52 cm, a neck circumference of 17.7 inches/45 cm and a back length of 15.7 inches/40 cm. It is suitable for dogs weighing 7.5 to 9.5 kg (16.5 to 20.9 lbs). XXL has a chest circumference of 21.6 inches/55 cm, a neck circumference of 19.6 inches/50 cm and a back length of 17.7 inches/45 cm. It is suitable for dogs weighing 10 to 12.5 kg (22 to 27.5 lbs). 3XL has a bust of 23.6 inches/60 cm, a neck circumference of 20.4 inches/52 cm and a back length of 19.6 inches/50 cm. It is suitable for dogs weighing 13 to 16 kg (28.6 to 35.2 lbs). 4XL has a bust of 26.7 inches/68 cm, a neck circumference of 21.6 inches/55 cm and a back length of 21.6 inches/55 cm. It is suitable for dogs weighing 16.5-20 kg (36.3-44 pounds). 5XL has a chest circumference of 30.3 inches/77 cm, a neck circumference of 23.2 inches/59 cm and a back length of 23.6 inches/60 cm. It is suitable for dogs weighing 20.5 to 29.5 kg (45.1 to 65 lbs). 6XL has a chest circumference of 33.4 inches/85 cm, a neck circumference of 24.8 inches/63 cm and a back length of 27.5 inches/70 cm. It is suitable for dogs weighing 30 to 37.5 kg (66.1 to 82.11 pounds).