Measure before ordering- This harness is suitable for small medium dogs and cats, don't purchase based on your old experience, please always measure the widest part of your pet's chest before ordering. If the chest girth is between two sizes, we recommend you to choose the larger size. DON'T CHOOSE SIZE BY WEIGHT ONLY. Easy to use & Quick release- Our Step-in harness is very easy to put on and take off with the fast-release safety buckle. Put the dog's front feet into the holes, close the magic tape fastener, then snap the buckle, attach the leash to D-rings, finished. Breathable & Comfortable- This harness is made of high density soft Air-mesh to protect your dog's skin, breathable, lightweight, comfortable, durable, easy to clean and quick-dry. Breathable Air-mesh keeps your dog always cool during outdoor activities, suitable for all seasons, your dog will enjoy the daily walk in this new style fantasy harness. Safety & Reflective- Super 360highly reflective strips is designed to reflect ambient light under extreme low light conditions, it can provide maximum visibility when dogs walking at night. Our No-Choke dog harness can distribute the pulling pressure evenly to the dogs body and protect dog's trachea and throat from pulling and choking. Warm functions & Soft padded lead with small D-ring- The small D-ring on the side can be used to attach your pet ID tag or clip on LED light. It is also equipped with a flexible and lightweight dog leash in 140cm length, comes along with soft padded handle and also a small D-ring to hook the poop bag holder, very convenient to put into your pocket when not in use. Through these little designs, we hope you will have a more comfortable daily walking with your four-legs friends.