• ATTENTION: Measure the widest part of your pet's chest and neck before placing the order. Refer to the size chart. DO NOT CHOOSE THE SIZE BASED ON WEIGHT ONLY. Ideal for small and medium breeds. • SAFETY REFLECTIVE DESIGN: Highly reflective 360° strips and 4 wide reflective bands for excellent visibility in the dark. The no-choke design protects the dog's trachea and throat from pulling and choking. Includes a quick-release buckle for added safety. • ADDITIONAL FUNCTION: D-ring on the front to attach the ID tag and LED light with clip. Separate loop on the back to store waste bags. Designed to make leash walking more enjoyable. • BREATHABLE AIR MESH: Made with soft, comfortable, lightweight, easy-to-clean, and quick-drying mesh fabric. Allows the dog's body temperature to diffuse in multiple directions through the vest. Ideal for active dogs. • EASY TO PUT ON AND TAKE OFF: It goes on and off in seconds, especially suitable for dogs that do not like harnesses to go over their heads. Simply place the front legs in the hole, close the velcro and buckle.