Fit Average Adult Cats Size X-small fits Chest Girth 9-11 inch, Neck Girth 7-8 inch, please MEASURE your dog or cat carefully and refer to the size guide before purchase, there may have some difference in the different breeds.Package includes harness and leash. WARM TIPS: if it's the first time for your cats to wear this kind of harness, we recommend that you can guide them to get used to wear it indoor firstly then taking them go outside. Super Soft & Comfortable: This escape proof dog or cat harness is made of lightweight, soft, breathable air-mesh fabric, with soft edge and resilient cushioning, which can effectively prevent injuries, giving extra comfort and protection, this all weather pet vest won't be too bulky to restrain your pet's movement or overheat your lovely pet when hot, and reinforced stitching allows you to walk your pet with confidence Safer & Better Control Our cat harness with reflective stripe can reflect ambient light in extreme low-light conditions, ensuring maximum visibility when night running; This outdoor kitten harness features a sturdy D-ring on the back to attach to a leash. Its vest-style design can evenly distribute leash pressure across the chest and shoulders to prevent choking or neck strain, which offers much more comfort and security than a basic halter or H-style harness. No Lost Again This cat harness has 2 side buckles for secure closure. The adjustable straps around the harness allow you to quickly customize the vest to your cat's tiny frame, so that he/she won't slip out easily or even get lost during outdoor adventures. Plus it gives room to grow for your curious and fast-growing pet. (Please use snacks to guide your cat to get accustomed to this harness, more details in the descripion as below) 100% Satisfaction & Quality Assurance Your satisfaction is our first priority. We offer a LIFETIME ASSURANCE for each product, any question, please feel free to contact us and we will help you within 24 hours. *Attention: Most cat is a talented escape artist, they may try hard to slip out of the harness, especially they never use it before, please be patient and guide them to get used to wearing this harness.