My dog is about 10/11 lbs, 17” long from the base of her neck to her rump, and she has a narrow waist/chest (about 11” and 13”). I ordered the size small to have the perfect length and the Velcro is able to be attached in a way where it still fits snuggly around her. She has unique proportions (being so long but skinny) so it’s been challenging to find an anxiety shirt that fits but this one has exceeded my expectations and I will purchase again for sure!
Very impressed! It feels exactly like the Thunder Coat. I love it and it arrived very quickly! I highly recommend this product.
S is too small for a 12 lb miniature poodle mix.