Graco Slimfit3 LX 3-in-1

If your goal is to fit three car seats side by side in your vehicle, the Graco SlimFit3 LX becomes a top contender. Measuring just 16.7 inches in width, it ranks among the narrowest car seats available in the market today. This makes it an ideal choice for families facing the challenge of accommodating multiple car seats in their back seat. The forward-facing mode has a seat belt lock-off, which can be helpful to get a tight installation in some tight center seating positions. Whether you have triplets, three kids of varying ages, or simply need to make the most of your vehicle’s limited space, the SlimFit3 LX provides a practical and space-efficient solution.

This seat is fairly compact rear-facing, so it can be a good option for smaller vehicles or to go behind tall passengers.

We’ve found that this seat tends to fit well in most vehicles, even ones that have non-removable headrests.

While the Graco SlimFit3 LX offers a plethora of benefits, it’s important to exercise caution if you intend to skip using an infant car seat. We recommend waiting until your child can sit unassisted before transitioning to this seat. The SlimFit3 LX, even in its most reclined position, may not provide the necessary support and comfort for a newborn due to its slightly more upright orientation.

While the high-back booster mode has 57″/100-pound limits, there is no child that will fit at either of those limits. The harness mode will last about a year after the harness mode is outgrown as the highest belt guide position is about an inch higher than the harness. You will need another booster once your child outgrows this seat.

In the world of car seats, it’s important to be aware of similar-sounding models. Apart from the Graco SlimFit3 LX, which is a narrow option, Graco also offers the Graco Slimfit 3 and Graco Slimfit 3 LX, neither of which boasts the same narrow design. These alternatives measure about 19 inches in width, making them wider choices. It’s also crucial to double-check the specific model you’re considering to ensure it aligns with your space requirements. Additionally, keep in mind that Graco True3Fit, a Walmart exclusive, is essentially the same as the slim Graco SlimFit3 LX, offering a narrow profile suitable for fitting multiple car seats in your vehicle comfortably.