You know I should have said structure also. I have the Teafco Argo Aero-pet small pet carrier for seven years and I've traveled cross country w/ it thirty or more times and some very long days doing so too. It can get a little warm in there as with most carriers that are built sturdy enough. Lots of very well vented carriers are not sturdy enough. This is the right mix. If it is hot when I travel I just slide a cold pack under the bottom pad. My old guy Lou used to jump in it as soon as I put it out often sleeping inside of it (with the top open) the night before a trip (he was a found boy and was always fearful of being left behind). Finn my new pup has made a few trips to the Vets in it and has done very well with it. |