I bought a size xs for my 10# chihuahua. Xsmalls states that it will fit 10-15#. It barely fits around her chest/abdomin, but I am fine with that. The separate chest piece would fit a much larger dog. I made it as tight as it would go and it was still too big. It leaves 9" of straps hanging down. I also made the separate padded abdomin piece as tight as it would go. It hangs so low, she can get her foot stuck in it. I called the company that makes it. They would only keep saying that it fits all dogs differently. It is being returned. It is well made and very sturdy if it fits your dog.
Excellent product. Good quality. Right size for my dog
I'm am extremely happy with every aspect of this Brace/Harness. I'm only mad that I didn't find out about it sooner... WORTH EVERY PENNY