【Measure before purchase】- This harness is suitable for small and medium dogs and cats, do not buy it based on your old experience, always measure the widest part of your pet's chest before ordering. If the chest circumference is between two sizes, we recommend that you choose the larger size. Do not choose the size based on weight alone. 【Easy to use and quick release】- Our Step-in harness is very easy to put on and take off with a quick release safety buckle. Put the dog's front feet into the hole, close the Velcro fastener, then buckle it, fasten the belt to the D-ring, and you're done. 【Breathable and comfortable】- This harness is made of high-density soft to protect your dog's skin, breathable, lightweight, comfortable, durable, easy to clean and quick-drying. The breathable air mesh keeps your dog always cool when you are outdoors, suitable for all seasons, your dog will enjoy daily walks with this new dream harness. 【Safety & Reflective】- The super 360° high reflective strips are designed to reflect ambient light in extremely low light conditions, which can provide maximum visibility when your dog is walking at night. Our No-Choke dog harness can evenly distribute the pulling force to the dog's body, protecting the dog's trachea and throat from pulling and choking. 【Warmth Function & Soft Padded Leash】- The small D-ring on the side can be used to attach your pet ID tag or clip on the LED light. It also comes with a 140cm long flexible and lightweight dog leash with a soft padded handle and a small D-ring to hook the poop bag holder, which is very convenient to put into your pocket when not in use. With these small designs, we hope you can spend your daily walks more comfortably with your four-legged friend.