Sport Pet Designs Cat Carrier, Foldable Plastic, Medium, 25 lb Limit, Gray, 15.25" L x 18.5" W x 14.25" H

I did buy the largest size and it is bigger than expected. I've already taken one cat (not pictured) to the vet for a checkup and it was the most relaxed car ride %26 vet appointment he's ever had. As you can see from the pictures, the other cat approves, as well. It is much easier to get them in and out of this vs the traditional rectangular carriers and so much better than the fabric ones. I am very pleased with the purchase so far.

These cat carriers worked out great. Needed 2 of the small-medium size and 1 of the XL . There was plenty of room for my smaller female cats and the XL for my male cat due to his length was plenty comfortable for him during our move from FL to Indiana. Long hrs of travel but all 3 did great and I credit these carriers for that. Seat belts can be fed through the top handles to secure in place. I placed the carriers in their kitty room with the blankets in them and left the doors open so they could get used to them prior to traveling. Highly recommend.