The size says that it was for a medium size dog up to 50 lbs. Definitely measure your dog! My dog weighs approx 25-30 lbs, but she has a barrel type chest, however she is not a big dog. The life vest doesn't even fit around her middle, I am not sure what type dog they had in mind for this vest however the size wise it was perfect for her body. The large vest would be too big for her because she is a small to med size dog, so I guess my search will continue. I am going to have to send mine back... I was very disappointed.
Rating: [1 of 5 Stars!]