Reminder: Before you decide to order our dog coat, please measure the dog's bust and neck circumference with a soft ruler, and then refer to our size and 3 notes to choose the right size. High-quality materials: The outer layer is made of waterproof material and durable polyester, with a smooth and soft feel. The inner layer is lined with fleece and cotton to effectively maintain the temperature of the dog's body, allowing warmth and comfort to accompany the dog through every cold winter. Reflective: The dog jacket is designed with reflective strips on both sides and ends of the jacket to improve visibility and ensure the safety of the dog 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 safety 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 safety belt. Walking the dog outdoors is so fashionable and convenient. 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 7.5-9.5 kg (16.5-20.9 lbs). XXL has a chest measurement 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 10-12.5 kg (22-27.5 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 13-16 kg (28.6-35.2 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). The 5XL has a chest measurement 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 20.5-29.5 kg (45.1-65 lb). 6XL has a chest measurement 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 30-37.5 kg (66.1-82.6 pounds).