We have used these bags to transport car seats from New Zealand to USA and back as well as on several trips throughout the USA. The bags are great, the seats fit in them easily and are relatively comfortable. Both bags are now wearing out on the edges from being dragged on and off planes but are still completely functional and protective of car seats after 10+ flights. Only con is that the straps on both bags have broken at the buckles so they now need to be carried by the fabric strap on the side.

I have loved the Diono radian car seat, however we travel via plane a lot so I purchased the car seat travel bag. It rained at the airport and when I got my car seat back it was completely soaked! The bag did nothing to protect the car seat. My poor son had to ride in a wet car seat to the hotel. I am very disappointed in the quality of this bag. The other issue we had was the carry straps are too far apart to wear comfortably through the airport. I feel like this was a complete waste of money. You get better protection from rain & dirt with a garbage lawn bag. Do not buy this thinking it is "waterproof" IT IS NOT.