Mewowpet Padded Warm Winter Jacket Dog Coat for Small Puppy and Medium Dog Cold weather vest dog clothes, suitable for small and medium-sized dog. Water resistant Nylon+Polyester outer layer, padded warm inner. Zipper closure design,very easy to wear and take off. Size S : Length 8.7-9.8 inch; Neck 8.3-9.1 inch; Chest 12.6-13.0 inch To get accurate measurement, please closely measure to your dog's skin with a soft ruler according to the size chart image.