I just wanted to thank you for this fantastic product! Gone are the days of fighting with my cat to put him in cage when the vet appointment was due. It takes a bit of practice to get the head through the opening, but in general it's so easy to get my cat into the bag. Even the vet was impressed, saying how it seemed to be his comforting blanket. He always wanted to go back in the bag during the examination. Not to mention that it is so much easier to securely attach the bag in the car than with a transport cage. And I have access to my cat while in the car, an activity he certainly hates. It helps calm him a little bit. I can't imagine a better thing to transport my cat when I have to!