Our kitty is 9yrs old, 11lbs and about 19 inches long from nape to base of tail. She, of course, knew this was a carrier, and of course was skeptical of it. We left it out a bit for to become accustomed to it and sniff it as much as she wanted. Yesterday when we took her to the vet, she of course didn't want to get into the bag, we had been trying to get her in with treats, which worked during the week when we were trying to get her accustomed. In the end we got her in (not w/o a bit a crying from our MamiCat) and started on our journey to the vet. it was raining lightly and the bag is really good for warmth, we could see her and she could see us with the "window Shades" and i believe she would have been comfortable if she wasn't so nervous. We got this deal really great ($50!) and couldn't believe the value. I would have paid almost 3x that much if I would have bought this at a brick and mortar store.