Dog wear, dog clothes THREEPPY Hooded Jacket, Black, M The chest size is listed as 35-42cm, and I bought it thinking my dog, who is 37cm, could wear it, but it was too tight, and I couldn't get it on. My dog weighs 3.6-3.7kg. I think it would be suitable for a very small dog under 3.5kg or around 3kg. Please ask if you have any questions.