Size Reference before Buy This is XS size:[Chest Girth: 10.2''-11.4"], [Weight within 3.3 lbs]. Please measure your cat carefully and refer to the size chart before buying.Do NOT select size based on breed/size name or other brands' measurements.YOITEA Cat Harness offers a great way to get your cat safely and comfortably outside. Package includes: 1*Cat Harness and 1*Walking Nylon Leash (120cm).Reflective Strips Design Reflective trim ensures your pet is visible when light hits, enhance your pets visibility for those early morning and late evening strolls so that you can easily track and spot your lovable pets even in darker places.Well-intentioned design.Comfortable&Durable The interior is made of breathable mesh fabric, which is convenient for pets to wick away perspiration and is not easy to stick to hair. Through hand washed or machine washed, the harness and leash won't deform, durable as well.Easy to Put On and OffThe outdoor kitten harness features a sturdy D-ring on the back to attach to a leash. There are two quick-release buckles and velcro closure provided which make it easy to put on or disconnect the Cat Vest Style Harness. It has dual adjustment points that allow it to comfortably fit on the cat or dog of any body shape.100% Satisfaction Guarantee : If you have any problems with the product, please feel free to contact us, we will try our best to solve for you.