Size Reference – XS (Neck girth: 85A -11A chest girth: 135A - 16A) S (Neck girth: 11A - 137A chest girth: 18A - 20A) Please measure your cat and refer to the size chart first before ordering Your cats head circumference should be at least 10 inches otherwise your kitten may slip out If your cat is between sizes please choose the smaller size Super Soft & Breathable Material - Made of lightweight soft breathable air-mesh fabric with soft edge and sponge cushion which can prevent injuries and provide good protection and perfect comfort This cat harness can be used in all seasons regardless of the hot or cold weather The non-stick hair lining and breathability allow you not to worry about cat skin problems Bright Reflective Strip & Sturdy D-rings - Reflective strip makes cat visible in low light conditions and improves safety when walking at night This outdoor kitten harness features a sturdy D-ring on the back to attach to leash It can evenly distribute the pulling pressure of leash across the chest and shoulders which is less pulling pressure on your pets fragile neck Lightweight and no pressure allowing them to play more freely and lively Fully Adjustable & Easy to Wear - This cat seat belt has 4 adjustable buckles and 2 quick-release buckle Both neck and chest strap are completely adjustable It is easy to wear and take off The adjustable design is very suitable for growing cats (Tips: The harness should be snug enough for you to fit one finger between the straps and any part of your cats body) Escape-proof cat Harness - Our harness can wrap cats comfortably in 360 degrees coupled with a thick and firm leash not easy to break multiple protection make the cat unable escape Suitable for daily walking jogging training and any outdoor recreations With Dooradar escape-proof cat harness it is easy to take the kitten to a strange place to travel and no longer have to worry about the cat getting lost