I have been looking for a high quality, visible service dog vest for years. I love Ruffwear products for their durability and craftsmanship and this vest did not disappoint. 10/10 recommend. Worth every dollar. For those between sizes, I would size down. My golden girl has a chest girth of 32 inches so we didn’t know if we should get the medium or the large. On the smallest setting, the large fits her, but the medium probably would’ve been better. We still love it and wear it everyday! (My dog is a female golden retriever that weighs 53 pounds.)