Graco Tranzitions 3-in-1 Harness Booster Car Seat, Forward Facing Car Seat, Highback, to Backless Booster, Proof
$119.99
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Price: $149.99 - $119.99
(as of Oct 20, 2025 04:46:51 UTC – Details)
The Graco Tranzitions 3-in-1 Harness Booster is designed to grow with your child and go with you, wherever your journeys take you—from car to carpool and beyond. This lightweight car seat transitions seamlessly from harness booster (26.5-65 lb) to highback booster (40-100 lb*) to backless booster (40-100 lb) and features the Simply Safe Adjust Harness System, which adjusts your harness and headrest to 9 height positions, with no rethreading. It features two rotating cup holders to keep your child happy, a machine washable seat pad, and harness covers. *To continue to meet industry standards, we have increased the weight minimum from 30 to 40 lb.
3-in-1 harness booster helps protect your child, from toddler to youth
Grows with your child from forward-facing harness (26.5-65 lb) to highback booster (40-100 lb*) to backless booster (40-100 lb) *To continue to meet industry standards, we have increased the weight minimum from 30 to 40 lb
No-Rethread Simply Safe Adjust Harness System allows the headrest and harness to adjust together in one motion
Lightweight, portable seat is ideal for busy, active parents
One-hand, 9-position adjustable headrest grows with your child
8 reviews for Graco Tranzitions 3-in-1 Harness Booster Car Seat, Forward Facing Car Seat, Highback, to Backless Booster, Proof
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$119.99
Jasmine Alise Smith –
LOVE THIS CUSTOMIZABLE CAR SEAT!
Light weight! Love the stone color! Great quality, easy to get in and out the car. I love the cup holders because they are detachable making it easy to clean! Takes up just enough space but allows 3 people to still fit in back seat.
Claire –
Easy to install. Good price!
Great car seat for a great price. It is super easy to install and it’s very comfortable for my 3 year old. We have three in car seats and they all sit in the same row, and it’s slim enough to comfortably fit!
Rachel Silvestri –
Always love Graco!
Love this car seat! It was very easy to assemble out of the box, just click the back into place and put into the car. It was so easy to buckle into the car as well when I’ve had some difficulty with other car seats in the past. It comes with not one, but two cupholders. Those saying they couldn’t figure that out didn’t read the directions at all (which you really probably should be doing with a car seat anyways). The top piece of the cupholder just snaps out, and you turn it around and put it back in. It’s a super cute color, and slimmer than a baby car seat. My 5 year old likes feeling like she is in a big girl seat but still has the harness on which I like. All the padding is machine washable. It’s lower to the seat than a typical car seat so my daughter can touch the floor of the car
Amazon Customer –
Good quality
Thet are light to carry and practical. They do not take to much space.. they are comfortable. Good fir the price.
Brandi M. –
Good quality, easy adjust, and comfortable
Bought this for my 3 yr old grandson. It is easy to adjust and seems good quality. He fits comfortably and has no complaints. I like that he will be able to continue using it as a booster once he outgrows the need for the harness/straps.
IndiaJ –
Safe, Sturdy, and Grows with My Child!
The Graco Tranzitions 3-in-1 Harness Booster Car Seat has been such a great purchase! I love that it grows with my child—starting as a harness seat, then a high-back booster, and eventually a backless booster. Installation was straightforward, and it feels really secure once in place. My child is comfortable during rides, and I feel confident knowing they’re safe. The fabric is easy to clean, and it’s not overly bulky, which makes it easier to move between cars if needed. Definitely a reliable, long-term car seat option!
Chelsea Blanchard –
Luxury looking car seat
I am in love with this car seat! I used to have the Nuna because I like how luxury that brand looks, but this is so comparable to Nuna! It doesn’t take a lot of space like my Nuna did. it is so easy to put in the car and it’s overall made so well!
kathie alcorn –
Nice looking
Pretty color my granddaughter said it’s nice and comfortable and she feels safe