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Graco

Graco Tranzitions 3-in-1 Harness Booster Car Seat, Forward Facing Car Seat, Highback, to Backless Booster, Proof

  • Based on 25,773 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Apr 26
Order within 9 hours and 28 minutes
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Color: Proof 2.0


Features

  • 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

Description

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.

Maximum Weight Recommendation: 100 Pounds


Minimum Weight Recommendation: 26.5 Pounds


Maximum Height Recommended: 57 Inches


Forward Facing Maximum Weight: 100 Pounds


Forward Facing Minimum Weight: 26.5 Pounds


Rear Facing Car Seat Maximum Height: 32 Inches


Installation Type: Latch


Orientation: Forward Facing


Harness Type: 5-Point


Number of Height Positions: 9


Brand: Graco


Age Range Description: Kid


Infant Toddler Car Seat Type: Booster Car Seat


UPC: 047406191178


Global Trade Identification Number: 78


Manufacturer: Newell


Unit Count: 1.0 Count


Item Dimensions D x W x H: 17.4"D x 19"W x 26.5"H


Item Weight: 15.1 Pounds


Material Type: Metal, Plastic, Polyester


Color: Proof 2.0


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Apr 26

Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Daughter loves the car seat and color !
Color: Eloise 2.0
I can honestly say this is one of the best purchases I’ve made for my kid—hands down. The Graco Tranzitions 3-in-1 Harness Booster Car Seat has been exactly what I was looking for: safe, versatile, and incredibly practical for everyday life. First off, I love how it truly grows with your child. It transitions from a 5-point harness to a high-back booster and then a backless booster, so I know I’m set for years without needing to upgrade again. That alone makes it a huge value. What really stood out to me is how lightweight and easy it is to move. Whether I’m switching cars or traveling, it’s not a hassle at all—something I didn’t realize I needed until I had it Installation was surprisingly simple, and once it’s in, it feels secure. The no-rethread harness and adjustable headrest make adjustments quick and stress-free, which is a big deal when you’re dealing with growing kids My child is genuinely comfortable in it—falls asleep on longer rides, no complaints—and I appreciate the little things like cup holders and easy-to-clean fabric Bottom line: it’s affordable, practical, and built to last. If you want a reliable car seat that checks all the boxes without overcomplicating things, this is it. ... show more
Reviewed in the United States on April 8, 2026 by Frankie
    • Flawless from start to finish, and looks EXACTLY like the photo on the box it comes in ;) lol
Color: Cinder 2.0
Review Image by Chase B
It's a GREAT product and company. Very happy with the install and the overall look and fell. It has space for life, including cup holders and padding that seems sufficient. And I love how light it is.. it's a good value for the money. No issues with the straps or anything to date, just a solid product that looks good! I am very happy with this product. Straps are TIGHT and this is easy to use. What more can you ask for out of a booster seat/car seat!? Happy all around. 10/10 I enjoy. :) ... show more
Reviewed in the United States on April 6, 2026 by Chase B
    • Perfect Growing Booster Seat!
Color: Proof 2.0
We love the Graco Tranzitions 3-in-1! It started as a secure forward-facing harness for our toddler (up to 65 lbs), then easily converts to highback and backless boosters as they grow, all in one seat. Super simple to install, lightweight for moving between cars, and the no-rethread harness/headrest adjustment is a lifesaver. Dual cup holders, machine-washable pad, slim design, and great comfort. It’s held up perfectly and gives us total peace of mind. Affordable and reliable, highly recommend! ... show more
Reviewed in the United States on February 24, 2026 by Angela B.
    • Great car seat
Color: Proof 2.0
Very sturdy and comfortable car seat. Easy to install and my child loves it. Great quality for the price. Highly recommend!
Reviewed in the United States on March 25, 2026 by Majorie
    • Fits, secure, comfortable!!
Color: Proof 2.0
EXCELLENT carseat!! Fit perfect in my car and can still SEE out my back window!!! My daughter LOVES it, and it doesn't tip all over!! Last one we had, even with ALL 3 anchors fastened TIGHT, STILL would lean! She is comfortable, loves the cup holders, and sits perfect in my car. Happy to know it will grow with her and we never have to get another crummy carseat again! THANK YOU!! ... show more
Reviewed in the United States on April 9, 2026 by Alexis
    • Thumbs up.
Color: Proof 2.0
Quality Brand, built well, easy to install in all my vehicles, durable, easy to clean. I would buy this again without hesitation.
Reviewed in the United States on February 10, 2026 by N.Elliott
    • Great seat
Color: Proof 2.0
It’s so soft and is the perfect size for my son. It was super easy to put together. I love the cup holders as they are more stable. And my son took great naps and it’s good for holding their heads.
Reviewed in the United States on April 4, 2026 by Amazon Customer
    • this is a great option for for your kiddo
Color: Proof 2.0
i like this so much i bought one for each of my cars. this is small and can grow with my little guy. it doesnt take much room. if you cant get one for every car, its lightweight and easy to move.
Reviewed in the United States on March 25, 2026 by TheMostH8D

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