Based on my experience (ordered a Medium for a 17 lb mini schnauzer mix), Her girth is is 15", and her length is slightly longer than 16". There is no stretch around the bottom edge of the sweater, and the Medium barely cleared her rib cage. I also went with girth vs length. IF I reorder it for her, I will probably go with an XL for her, and I don't think they sell a larger size than that, This should be described as a sweater for small dogs only. It's a really nice weight, which is difficult to find for dogs.
answered 1 year, 6 months ago
1out of 1found this answer helpful.
I have 2 dogs both 18' girth and one is 18 long and the other is 16 long. The size 16 fits them both well with room enough around the girth to also include a thin sweater or shirt. One is about and inch taller than the other. I would go with the girth size as they seem longer than what the 16 says the length is - which is 15-16 but my dogs are both longer than that slightly and it fits them to the end perfectly.
answered 1 year, 7 months ago
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I would go with the smaller size 12" for the Italian Greyhound. I would go with the 15 or 16" for the Heinz. Go smaller for sure.
answered 2 years, 6 months ago
1out of 2found this answer helpful.