Graco - Tranzitions 3-in-1 Harness Booster

The graco transitionz is great for this. It can be a 5 point harness seat but also a high back booster and I think low back booster eventually. It’s not too expensive either. We love ours! My daughter is 5.5 and fits comfortably in it and will for a long time.

We went from infant seat to extend to fit to Graco transitions to a cheap booster. But that's mostly because there was a sibling to use the next seat. Transitions can also be a backless booster. They didn't make rotating seats when my oldest was little so I never tried one.

Transitions by Graco. My kid is almost 6, 39 lbs. and 44”. Still fits beautifully with lots of room, and is still harnessed. It’s inexpensive, converts to a high-back booster and then a no-back booster, and adjust in just a few seconds if you need to put a different kid in it.

Agree nuna rava is super easy BUT It’s $$$ and def not a grandma spare type car seat. Diono radian is front facing 5pt harness and I find it easy to install, have it in my husbands car and often have to take it out when we are driving other adults. Chico kid fit high back booster very easy to install. Just attach to latches and pull tight at the front. FWIW I bought a Graco transitions as an extra for grandparents and anytime they take it out and reinstall themselves it’s insanely loose and not right at all. It takes a lot of effort on my part to get it tight enough.

2021 rav 4 2 forward and 1 rear facing Left is graco slim fit 3 in 1 with latch Middle is graco transitions with seat belt Right is graco infant car seat with latch. A lot of trunk space This setup also works with my 2019 Mazda cx5 but trunk space is way less than rav

We have the Graco transitions and are using it on the plane. Lightweight and that way we have a car seat when we get to our destination

another vote for this seat! we use it for a kid that’s 43” & 45lbs and another that’s 46” and 55lb and both are comfortable.

Maybe something like the graco transition would be good. It’s shaped like a booster but has a 5 point harness. Then can grow with them into a booster seat when they get bigger. The ride safer vest could also be a good option travel and portability wise.

I am a CPST here in the US, so I have an extensive collection of car seats. I do a baseless install with a Nuna pipa, but I just installed the revolve slim today for my 1 year old (he is small) my 4 year old uses a Graco tranzitions and my 6 year old uses a bubble bum inflatable booster. My 4 year old has also used a ride safer travel vest. I’ve seen people manage 3 across with the graco slimfit. I’m not sure what seats you have access to. It’s doable though. My kids haven’t complained about being cramped when we do 3 across. We don’t drive more than 2 hours usually in one direction. If we are doing a longer trip, we drive my large suv.

Just flew with my son. No he fits the seatbelt great. I check the Graco transitions as our travel seat that way I have it in a car.