I think I named this thread incorrectly, not really an x-pen, but just a collapsible pen

Does anyone have recommendations? I travel a lot in the summer, and would like to find the right one soon. It would make things easier if I had a safe and comfortable place for him in rooms and cabins away from home. I would like to have it now, so he could get used to being in it, and if there were any problems with it, I could deal with them when we aren't on the road.
I need it to collapse, as my car is very small, so a regular crate would be too bulky. I can see this is going to be like travelling with a baby, sigh.. I just ordered a booster car seat, and yes, that is pretty bulky, but I want him safe and happy.
Thanks!