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Graco Tranzitions 3-in-1 Harness Booster Car Seat, Proof, Black

3,106 ratings
Graco Tranzitions 3-in-1 Harness Booster Car Seat, Proof, BlackGraco Tranzitions 3 in 1 Harness Booster Car Seat ProofGraco Tranzitions 3 in 1 Harness Booster Car Seat Marley
Actual ColorProof

Key item features

  • Graco Tranzitions 3-in-1 Harness Booster Car Seat, Proof, Black
  • 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
  • Integrated, rotaing holders help keep your child's drink close
  • Open-loop belt guides help properly position your vehicle’s seat belt
  • Seat pad and harness covers are comfortable and machine washable
  • Graco ProtectPlus Engineered: a combination of the most rigorous crash tests that helps to protect your little one in frontal, side, rear & rollover crashes

About this item

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Customer ratings & reviews

4.5 out of 5 stars
stars
3,106 ratings1,060 reviews
How item rating is calculated
  1. 5 stars78% (2,438)
  2. 4 stars10% (310)
  3. 3 stars3% (100)
  4. 2 stars2% (55)
  5. 1 star7% (203)

Reviews summary

Pros

  • : Offers additional cushioning for kids during travel.
  • : Offers good cost-to-benefit ratio.
  • : Designed for compact vehicles and spaces.
  • : Features a secure five-point restraint system.
  • : Process is simple and quick to complete.

Neutral

  • : Can fit standard cups, but may not secure them well or accommodate all sizes.
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Showing 1-3 of 1,060 reviews

Jun 11, 2026
Reviewer name: MamaRaccoon95
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Love it! Checks all the boxes!

[This review was collected as part of a promotion.] We bought this seat to transition our 3.5 year old from rear-facing to forward-facing. It was incredibly easy to install! My kiddo loves it and I feel like she is safely snug within the harness. Also the seat sits at just the right recline that when she falls asleep on the car her head doesn't fall forward. I feel like this is the best seat for safety, comfort, ease of installation and affordability. Would definitely recommend to everyone!

Review from gracobaby.com
Helpful?449UHFIEQMDU5959693583
Jun 30, 2026
Reviewer name: Flynn30
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Very nice car for a 4 year old

[This review was collected as part of a promotion.] We are loving our new car seat. My daughter sits comfortably in it and actually falls asleep in it. Her last one she would never. It was easy to install and it's easy to use. Lightweight and doesn't take up a ton of space either. Plus we love the color!

Review from gracobaby.com
Helpful?449UHFIEQMDU5959693583
Jul 14, 2026
Reviewer name: StortsSix
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Best convertible harness/booster

[This review was collected as part of a promotion.] I have now purchased 4 of these for all 4 of my kids. The first one I bought is still in great condition, but we now have 2 in each of our family's cars. Easy to assemble and use daily, lightweight. Flexible. Great purchase, worth the money but is very reasonably priced!

Review from gracobaby.com
Helpful?449UHFIEQMDU5959693583
Current price is $139.99
Price when purchased online
  • Free shipping
  • Free 90-day returns
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