This carrier is awesome except for one thing. If you fly first class, you cannot fit this under the seat on US Airways, but you CAN actually fit it fine under the seats in coach. I didn't know that and thank God they were able to put these under two empty seats in coach, so my babies could still fly with me. I got pink for my girl cat and this green for my boy cat. They are very large cats and they fit in their respective carrier with room to sit, stand and lay down. I turned is sideways to get under the seat in coach and they were still find to lay down and sleep with room to spare. The rolling feature made it totally easy to get them through the airport too!