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SlimFit3 LX 3-in-1 Car Seat

Rated 4.7 out of 5
724 Reviews|, 5 Answered Questionsor
$
259.99
Free shipping & returns for Babylist orders $45+
color
Kunningham
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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 that fits three car seats across, saving space in your back seat without compromising on safety.

This narrow all-in-one car seat 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).

Graco tested this lightweight 3-across car seat in every configuration, to help ensure your growing family can fit in your vehicle, even with children of different ages who ride in different modes, or when paired with other select Graco car seats.

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.

It’s easy to adjust and clean too. 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. This car seat is Graco ProtectPlus Engineered to help protect in frontal, side, rear and rollover crashes.

What we love 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: 22-100 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)
  • Manufacturer’s Warranty: 1 Year Limited

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Q&A

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4 Questions
Does this car seat need a base?

It already has a built-in base. Since it's a convertible car seat, there's no option to purchase an extra base.

Does this come with the base?

The Slimfit3 is actually a convertible car seat, so it doesn't come with a separate base like infant car seats do.

Does this work with newborns?

This car seat can be used with infants starting at 5lbs. It will fit most newborns well, but you may want to keep in mind that it needs to be on the most reclined setting for a newborn. It will take up more space front-to-back compared to the same car seat when used with a rear facing toddler.

Does this carseat connect to a stroller?

This carseat is a convertible carseat and does not connect to any stroller. Convertible car seats are intended to be semi-permanent fixtures to the vehicle where they are installed.

Customer reviews

724 Ratings
4.7out of 5
724 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 724 Reviews
Rated 2 out of 5
Mar 14, 2025
Good seat but watch out for flaw
We bought three of these seats. Two are working great. One has a harness issue where it is loosening without the button being pushed. Graco would not replace the seat, even though we should still have years left to use it. Just be sure to check frequently and make sure the harness will not loosen on its own if you get this seat. It does fit 3 across fairly easily as advertised.
Rated 3 out of 5
Mar 3, 2025
Nice price point. But sacrifices comfort.
There’s a lot of things that the slimfit3 lX does well, very nice ventilation, price point and compactness. Unfortunately, all of those things come at the expense of comfort for baby and functionality. I cannot/will not use this seat for longer than 30 minute car rides bc my baby gets quite uncomfortable in it. She never complains in her other car seat by a different brand though.
Rated 5 out of 5
Feb 5, 2025
None
The seat fits nicely in my 2012 MX5 Miata (NC), which is the largest body style of the 4 models. I need to purchase one more before commenting on how well they fit on a bench seat side by side. I'm a grandparent, so this isn't a daily use item, I have my own seats to make visits easier.
Rated 5 out of 5
Feb 2, 2025
SlimFit3 LX
We like the SlimFit3 LX because it is so slim. We’re going to need 3 across in my husband’s truck and it works well for that. However, it is harder to get my 2.5yo in and out of when rear facing. It sits a little higher than the regular SlimFit. The SlimFit3 LX is great for my 10mo when rear facing. We’ll probably switch the seats when we turn the older one forward facing this summer.
Rated 5 out of 5
Jan 22, 2025
Love it
Love it, sturdier install than another brand I phases ordered. Much prefer the graco. Like that the cup holder stick straight out so still an option to have them on when installed three across.
Rated 5 out of 5
Jan 2, 2025
I love this car seat!
To be succinct: easy set up and install, lightweight, straps adjust/tighten easily once child is buckled in, the straps fit nicely behind the sides of the seat to easily get kids in and out avoiding fighting with straps. Big fan of this seat! We bought for our 4 (forward facing) and 2 year old (rear facing).
Rated 5 out of 5
Jan 1, 2025
Convenient and comfortable
Easy to install, little one seems very comfortable in it.
Rated 5 out of 5
Dec 30, 2024
Must have for 3 car seats wide in SUV or truck
So slim and so secure. Easy to buckle and unbuckle. Fits well with 2 other convertible car seats (that aren’t slim) in a pickup truck. Definitely recommend! Wish I would’ve bought this one for my oldest child instead of discovering it with my 3rd
Rated 5 out of 5
Dec 25, 2024
Test drove
My son loves this seat. I have not installed anf started using it yet because he still fits in his infant seat but we test drove the seat lol.
Rated 5 out of 5
Dec 21, 2024
Slim car seat that's only 16.7 inches wide.
A great car seat that's narrower than the other SlimFit model and 4Ever models.

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