【ATTENTION 】- XXS ( Chest: 25-29cm), XS ( Chest: 30-34cm), S ( Chest: 35-40cm), M ( Chest: 41-46cm), L ( Chest: 47-52cm). This harness is only suitable for small dogs and cats, don't purchase based on your old experience, please always measure your pet's chest girth before ordering. 【SOFT AND COMFORTABLE 】- Your dog will enjoy the daily walk in this comfortable dog harness. It is made of soft breathable acrylic to protect your dog's skin, lightweight and easy to clean. Breathable air-mesh keeps your dog cool during outdoor activities. 【REFLECTIVE AND SAFE 】- Super Reflective stripes is designed to reflect ambient light under extreme low light conditions, it can provide maximum visibility when dogs walking at night. Our non-pulling dog harness is specially designed with pulling pressure evenly distributed to the dog body to prevent pulling and choking. 【EASY TO USE AND QUICK RELEASE】- This harness is easy to put on and take off with the fast-release buckles. Put on the dog's back and wear it as product description, buckle it up, adjust the straps, then attach it to the leash, perfectly finished. 【SUITABLE SIZE】- For the safety and comfort of your pet, please measure them accurately before placing an order. If your pet’s chest girth is between the two sizes, we recommend you to choose the larger size.