It is very rare for our Drying Coats to not fit a dog – we have the biggest range of sizes we know. We also have a different design, and five sizes, especially for short-legged dogs. All of the coats are very adjustable. On the M coat for instance, there are over 12 inches of Velcro on the coat for the belly flap to attach to, so two dogs will both fit an M coat – even if one is 12 inches bigger round the waist than the other. Also, because the coats can be secured so tightly, a long slim dog, like a Whippet or a Greyhound, can go up a size, and still be fastened securely in a coat, ensuring that the undercarriage is drying and the coat stays in place.