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Graco SlimFit All-in-One Review

2019 Graco SlimFit All-in-One Quick Review

A common carseat conundrum that caregivers encounter is the issue of space in the backseat. Whether it is due to a small vehicle, a growing family, or vehicle limitations on where carseats can be installed, space can be an issue. With this in mind, Graco introduced the SlimFit All-in-One that is intended to solve some or all of your carseat space woes, especially compared to the similar Graco Milestone. Let’s take a look!


  • Rear-facing: 5-40 lbs. and top of head is 1″ below red adjuster handle
  • Forward-facing (with harness): 22-65 lbs and 49″ or less
  • High-back booster: 30-100 lbs. and 38-57″ and at least 4 years old
  • No-rethread harness with 10 position headrest
  • Adjustable base with 4 recline positions (2 for rear-facing, 2 for forward-facing)
  • Steel reinforced frame
  • Energy-absorbing EPS foam
  • Premium push-on lower LATCH connectors (LATCH limit: child weight of 45 lbs.)
  • Dual cupholders which can be rotated away to save space
  • IIHS Best Bet Booster rating
  • Ten-year expiration date



  • Lowest harness height (with infant insert): 7″
  • Highest harness height: 18”
  • Tallest booster height: 18.75″
  • Internal rear-facing height: 27.5” (that’s one inch below the headrest adjustment lever of 28.5” )
  • Crotch buckle positions: 5″, 6.25″, 7.5″
  • Seating depth (interior): 12″
  • Deepest point on base: 15″
  • Internal seat width: 12″
  • Widest external seat width: 18.5″ (at wings, although if you use both cupholders it is wider at the armrest area)
  • Widest point across armrest area: 17″ (both cupholders retracted) or 19.75″ (both cupholders extended)
  • Widest point on base: 13.75” (at the middle)
  • Narrowest point on base: 13.25” at back and 13.25″ at front

Overall, the SlimFit is very similar to what we found in the Carseatblog review of the Milestone with some minor differences noted here. This is because the SlimFit and the Milestone are nearly identical in terms of their features and are essentially the same product with the exception of fashions and a minor change or two. Above, you can see the Milestone without its optional single cupholder (left) and the Slimfit with its two cupholders retracted (right). They are so similar, in fact, that I was skeptical about whether the SlimFit really offered any additional advantages over my beloved Milestone. Could I really fit a SlimFit anywhere that I couldn’t fit my Milestone with its cupholder removed? Because I love the Milestone so much, I was more than willing to try the SlimFit and see if I could find a seat I loved even more. I am happy to say that I think I have!


First of all, the installation of the SlimFit is very easy, just like my beloved Milestone.

IMMI Go Combination Carseat Review – Safe & Portable


The IMMI Go is a unique seat that provides a solution to some of the most common carseat difficulties. It is portable, easy-to-install and works well in some tight spaces. The same features that make it so great, however, also come with some limitations that make it not the best seat for every child or every vehicle. We hope that this review provides you with all the details you need to determine whether this fantastic seat will be the right seat for you!

The IMMI Go is a combination seat, which means that it combines the features of a forward-facing harnessed seat with the features of a booster. It is important to note that, while most combination seats convert from a forward-facing harnessed seat to a highback booster and then, in some cases, to a backless booster, the IMMI Go converts straight from a harnessed seat to a backless booster, with no available highback booster mode. It is generally recommended that children who are first learning to ride in a booster use a highback booster before switching to a backless booster. A highback booster often provides a better fit for a younger child and helps remind the child to stay in position better than a backless booster. Therefore, while the IMMI Go combines two stages very nicely, those two stages are not necessarily consecutive and so the seat might not be used in the same way as other combination seats. For example, instead of converting the outgrown harnessed seat to a booster and continuing to use it for the same child, a parent might choose to transition the child to a different highback booster and pass the Go down to a younger sibiling.

I bought the seat to use when my daughter turned four and began forward-facing in my in-laws’ car. I wanted something convenient to install and remove, while also being easy to use. I am very happy to say that the Go is fulfilling all those needs for my in-laws and we are even considering buying a second Go for our own car.

Without further ado, let’s get this review started!

IMMI Go Specs:

Forward-Facing with Harness: For use with children between 22-65 lbs (no more than 55 lbs when installed with LATCH) in weight and 31-52″ in height. Harness adjusters must be at or above the child’s shoulders and the top of the child’s ears must be below the vehicle’s seat back or headrest. (Note that while the IMMI Go has an adjustable headrest of its own in harnessed mode, this seat requires vehicular head support in the form of the seat back or headrest.) 

An additional requirement is that the child must also be at least one year old, however it is not the most appropriate seat for a one year-old. The American Academy of Pediatrics, National Highway Transportation Safety Association and other organizations strongly recommended that all children under two years old continue to ride rear-facing until they have outgrown the rear-facing height or weight limitations of their convertible carseat. For more information on why rear-facing is safest for young children, see Why Rear-Facing is Better: Your RF Link Guide.

Backless Booster: For use with children at least four years old and between 40-100 lbs in weight and 43-57″ in height. The top of the child’s ears must be below the vehicle’s seat back or head restraint.

IMMI Go Features:

  • Five-point harness system is attached to a flexible back which can fold up — this means that the use of the top tether is required in order to install the seat in harnessed mode
  • No-rethread harness
  • Energy-absorbing foam in the adjustable headrest
  • 3 crotch buckle positions
  • Premium push-on lower anchor connectors which can also be used in backless booster mode
  • Lightweight and compact — can fit in the overhead bin of an airline
  • 55 lb child weight limit for using the lower anchors in harnessed seat mode
  • 6-year lifespan before expiration
  • Integrated carrying case with padded handle
  • NOT FAA certified for use on an aircraft (because it requires the use of a tether anchor for the harness and a lap-shoulder belt for the booster and airplane seats do not have either of these features)
  • MSRP $199

The IMMI Go folds into its own attached carrying case, complete with a padded carrying handle.

The headrest is lined with energy-absorbing foam measuring about 1 inch in thickness.

Comfort foam lines the seating area to provide supportive cushioning for the tush and thighs.


IMMI Go Measurements:

Guest Blog: Graco Extend2Fit 3-in-1 and Milestone All-in-1 Comparison

Faceoff: How Do the Graco Extend2Fit 3-in-1 and Graco Milestone All-in-1 Compare in Terms of Features, Ease-of-Use, and Installation?

I recently purchased a Graco Extend2Fit 3-in-1 car seat. At 30 lbs, my 3.5 year old daughter hardly needs the 50 lb rear-facing weight limit, but she’s had a recent growth spurt in her legs and so I thought she might enjoy the option of the added legroom. Her current favorite seat is the Graco Milestone and so I was curious as to how these two 3-in-1 seats from Graco would compare.


The Graco Milestone (left) and Extend2Fit 3-in-1 (right) side-by-side in store at Babies R Us.

First, let’s define 3-in-1 in this situation, since there is no industry-wide accepted meaning. Both the Milestone and the Extend2Fit 3-in-1 car seats are able to be used rear-facing, forward-facing, and as highback belt-positioning boosters. Unlike the Graco 4Ever car seat or the Graco 4Ever Extend2Fit All-in-One, neither of these seats becomes a backless booster.

Both the Milestone and the Extend2Fit 3-in-1 car seats are rated to accommodate children from infancy to 100 lbs; however, a major difference is their rear-facing weight limits. The Milestone can be used rear-facing from 5-40 lbs, which is typical amongst current seats. Provided that they meet any height requirements, a 40 lb rear-facing limit will allow most children to rear-face until they are well into the preschool years. The Extend2Fit 3-in-1 car seat offers a 4-50 lb rear-facing weight limit, which is the highest available in the United States. Neither the Milestone nor the Extend2Fit 3-in-1 seat has a rear-facing standing height limit and so the only height limitation specifically for rear-facing is that the child have 1” of clearance between the top of the head and the red or gray headrest handle — which can be moved into any of ten positions. As a result, even tall children will be able to rear-face in either of these seats for a very long time. For heavier children, the 50 lb rear-facing weight limit on the Extend2Fit 3-in-1 means that even a boy in the 97th percentile for weight can rear-face past his 4th birthday.

These two seats have many similar features such as push-on lower anchor connectors, no re-thread harness, infant padding, removable harness pads, a convenient storage compartment for stowing the harness when the seat is in high-back booster mode, machine-washable soft goods, and Graco’s “roller bar” harness system on the back of the seats which allows the caregiver to tighten the harness quite smoothly. However, there are also some notable differences, which are summarized in the table below:

Milestone Extend2Fit 3-in-1
Ball-style level indicator with one rear-facing recline age range Bubble-style level indicator with two rear-facing recline age ranges (0+ and 3+ months)
Four recline positions: Two recline positions only for rear-facing, one only for forward-facing, and one for either forward-facing or belt-positioning booster Six recline positions: Three recline positions only for rear-facing, one for rear-facing or forward-facing, one only for forward-facing, and one for either forward-facing or belt-positioning booster
12” legroom when rear-facing 12 – 17” legroom (depending on the setting of the 5-position extension panel) when rear-facing
No specific feature for holding the harness back when loading/unloading; however, the loops on the harness straps prevent the buckle tongues from sliding all the way down “Fuss Free” buckle pockets for holding the harness out of the way when loading/unloading
Covered back Exposed back allows access to the harness straps
No special weight-specific rules for forward-facing Harness covers must be used if the seat is used forward-facing for a child under 25 lbs. Recline 6 must be used for a forward-facing child over 40 lbs.
One cupholder that can be moved to either side or removed to save space Two required cupholders

Rear-Facing Fit to Vehicle

Extend2Fit 3-in-1 in a 2010 Subaru Impreza

The true test of a seat that claims to be both compact and spacious is how (or whether) it will fit in a small vehicle.