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SlimFit3 LX 3-in-1 Car Seat

Rated 4.7 out of 5
858 Reviews|, Answered Questionsor
$
299.99
Free shipping & returns for Babylist orders $45+
color
Katrina
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1

Overview

Highlights

  • Fits child between 5-100 lbs
  • Stages: Infant, Convertible, High Back/Belt Positioning Booster
  • Does not rotate
  • Comes with two cup holders

Description

This Graco car seat is their slimmest design. It fits three car seats across in your back seat (in every configuration), saving space without compromising safety.

The narrow all-in-one design grows with little ones from rear-facing harness (5-40 lbs) to forward-facing harness (26.5-65 lbs) to highback booster (40-100 lbs).

Integrated belt lock-off makes for easy vehicle seat belt installation in forward-facing mode, and allows you to position seats to maximize space with three across.

Graco’s exclusive push-button InRight LATCH provides an easy, one-second attachment with an audible click to help ensure secure installation.

The No-Rethread Simply Safe Adjust Harness System allows you to adjust the height of the headrest and harness to ten positions with just one motion for just the right fit. Adjust the four-position recline for a better installation and a comfortable ride.

The Rapid Remove cover comes off in 60 seconds, without uninstalling the seat or removing the harness, and it’s machine washable.

Breathable mesh AirFlow channels provide improved ventilation to keep kiddos cool and comfortable. Two cup holders are designed to work with the three-across configuration to keep drinks and snacks close at hand.

Fuss-free harness storage pockets conveniently hold the harness out of the way while children get in and out. Removable, plush head and body inserts also keep baby feeling cradled and comfortable.

The steel-reinforced frame provides strength and durability for years of use, and EPS energy-absorbing foam provides effective impact energy management.

For peace of mind, it’s Graco ProtectPlus Engineered. This is a combination of the most rigorous crash tests that helps to protect passengers in frontal, side, rear and rollover crashes.

What we  about it

Safely fits three across in your back seat.

Details

  • Stages: Infant, Convertible, High Back/Belt Positioning Booster
  • Overall Dimensions: 24.5” (H) x 16.7” (W) x 20.7” (D)
  • Product Weight: 19.2 lbs
  • Rear Facing Capacity: 5-40 lbs, Max 49”
  • Forward Facing Capacity: 26.5-100 lbs, Max 57”
  • Number of Recline Positions: 4
  • Number of Head Rest Positions: 10
  • Number of Crotch Strap Positions: 3
  • Car Seat Features:
    • Level Indicators
    • Harness Holders
    • No-Rethread Harness
    • Fits Three Across
  • Number of Cup Holders: 2
  • What’s Included: Cup Holder
  • Cleaning and Care:
    • Machine-washable seat cushion
  • Certifications: Meets or exceeds US Federal Motor Vehicle Safety Standard 213 (US FMVSS 213); Side-impact tested according to FMVSS 213a with the built-in 5-point harness system
  • Manufacturer’s Warranty: 1 Year Limited

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Customer reviews

858 Ratings
4.7out of 5
858 Ratings

Rated 5 stars by 84% of reviewers

Rated 4 stars by 11% of reviewers

Rated 3 stars by 2% of reviewers

Rated 2 stars by 2% of reviewers

Rated 1 star by 2% of reviewers

1-10 of 858 Reviews
Rated 1 out of 5
I regret spending the money on this seat. I’ve used it for three separate kids and all three have severe head slump. 6 year old forward facing, 2 year old forward and rear facing and 9 month old rear facing. Installed correctly with bubble in the correct spot. I put my kids back in chicco seats and they are able to sleep correctly with no head slump. This seat now sits in my closet for a back up seat in case of an accident to hold us over for new ones.
Mar 11, 2026
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Rated 4 out of 5
Graco slim fit
This review was collected as part of a promotion
This seat is great and works well. I like the slim design on it so grown ups can still have room sitting out back. I wish that you could remove the fabric in the seat to be able to put it in the washing machine and clean it easier.
Mar 10, 2026
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Rated 5 out of 5
Great caraeat
This review was collected as part of a promotion
This is a great car seat. It’s super snug and good fitting on my toddler. It is narrow just like advertised.
Mar 9, 2026
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Rated 5 out of 5
Slim fit!
This review was collected as part of a promotion
Great product! And excellent customer service! Fits in so many different configurations and three across!
Mar 7, 2026
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Rated 5 out of 5
Great in smaller cars
This review was collected as part of a promotion
We got the slim fit car seat for my crossover sized vehicle and it fits great. There is still plenty of room in the back seat for another passenger, and our baby is very comfortable in his car seat. Super easy to install too.
Mar 6, 2026
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Rated 4 out of 5
Exactly the Slim, Lightweight Seat We Needed
This review was collected as part of a promotion
bought the Graco SlimFit3 LX because I wanted a less bulky car seat, and it completely delivered. At under 17 inches wide, it saves a massive amount of space in the backseat compared to the standard SlimFit, and it was a lifesaver for travel since it’s so light and fully FAA-approved. The only reason I’m giving it 4 stars instead of 5 is that getting a tight rear-facing installation with the seatbelt takes a bit of extra muscle without a built-in lock-off, and the cup holders can be a tight
Mar 5, 2026
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Rated 5 out of 5
My research paid off, love this car seat!
This review was collected as part of a promotion
I did a lot of research before purchasing this car seat. I had my daughter in an infant carrier and she was getting too big, so I knew it was time to move up to a convertible seat.

We drive a small car, a 2013 Kia Rio, and we are hoping to have another baby soon. My biggest priority was finding something that could fit in our backseat alongside an infant carrier. Specifically, I needed a car seat that would fit behind the driver when my husband was driving with the seat pushed back,
Mar 5, 2026
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Rated 5 out of 5
Great
This review was collected as part of a promotion
Honestly this car seat is elite, super slim and my toddler loves it and is comfy in it
Mar 3, 2026
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Rated 4 out of 5
Great car seat
This review was collected as part of a promotion
We like these car seats. They are compact, and fit my 3 year olds well. We needed new car seats after the foam inserts started falling off our old ones. After shopping around, and even buying a different one and returning it, we settled on these.

I like that my kids are safe, and I appreciate all the protection, but it does make it hard to get them in the car seats. Our old design was much easier and sleek (though not as safe)

I also wanted to rear face to the max size, but these
Feb 27, 2026
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Rated 3 out of 5
Fits Rear facing Only. Latch straps too short.
This review was collected as part of a promotion
Fits great! But latch system straps are too short! If they added 1-4 inches in length you could actually adjust them and tighten them. Instead it’s designed to the minimum length and you have to really really pull tight to get the latch to engage while it’s at the maximum length. Hopefully they fix that soon!
Feb 22, 2026
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