This posting is for two dog sweaters- 1. The yellow fleece is a size small. 2. The purples sweater is the Meet the Parents x Wray sweater- size XS. This one is more stretchy. Both sweaters are slightly pilled, but both are in good condition. The website recommends 10-17 lbs for size XS…but I’d say these would be best for 15-20 lbs dogs based on the dog who wore them. That being said they are stretchy.