Size Chart: Size S: Bust : 23-42 cm/9-16 inch, reference weight: 1-3 kg/2.2-6.6 lbs, suitable for cats, kittens and small dogs. Size M: Bust : 28-46 cm/11-18 inch, reference weight: 3-5 kg/6.6-11 lbs, suitable for cats, small dogs and puppies. Size L: Bust : 35-50cm/13.7-19.7inch, reference weight: 5-9 kg/11-20 lbs, suitable for small dogs and puppies. Product Description: Product Description: Material ——Made of high quality cotton fabric, it is soft and comfortable to wear, and the mesh cushion design is breathable and won't pull your pet. Product Description : Plaid tuxedo vest and safety bell design, this kind of bell is very safe for your pet, you can easily find your dog and kitten. Product Description : Adjustable - With an "A-shape" clip on the back, it can be adjusted to better fit your pet dogs and cats, and is easy to put on and take off. Product Description : Suitable for small dogs, cats, such as puppies, chihuahuas, shih tzu, mini poodle, yorkie, yorkshire terrier, pomeranian, bichon frize, etc., suitable for daily walking, outdoor running, training, etc Note: The data is all manually measured, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail .