Warm Tips - Please measure your pet’s size accurately before placing an order! If the dog’s chest is between the two sizes, it is recommended to choose the larger size. NO PULL & NO CHOKE - The harness has an alloy pull hook on the back. You can attach the leash to control the puppy while you are walking, running, shopping and training, you can enjoy the freedom and safety. Safety - The reflective strap ensures that dogs are visible from the car in the dark night and low light conditions. Comfortable - The front fabric is breathable and comfortable polyester, the dog does not feel stuffy. The reverse fabric is delicate and soft, and the weaving threads are dense and not sticky to dog hair. Easy to wear - The adjustable strap can fit the dog’s body better. You can fasten the buckle after fixing the velcro, which is safe and firm.