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One-4-Life Slim All-In-One Car Seat

Rated 3 out of 5
1 Reviewor
$
449.99
Free shipping & returns for Babylist orders $45+
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Parchment
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Overview

Highlights

  • Fits child between 5-120 lbs
  • Stages: Infant, Convertible, Harness Booster, High Back/Belt Positioning Booster
  • Does not rotate
  • Comes with 2 cup holders

Description

The One4Life Slim takes your child from birth to big kid.

It starts rear-facing with an extended capacity of up to 50 lbs so baby can ride rear-facing longer.

It easily converts to forward-facing toddler mode (up to 65 lbs) and high-back belt-positioning booster mode (up to 120 lbs). ClickTight helps you install with confidence.

With a slim outside and spacious inside, the 17.5” seat is designed to fit three across without compromising safety and comfort (always double check the dimensions of your back seat).

The base and shell are easy to wipe down for hassle-free cleanup. The car seat cover is safe to machine wash and dry, and it’s naturally flame-retardant with no added FR chemicals.

One4Life Slim features a high-strength steel frame, a SafeCell crumple zone and a V-shaped tether. As little ones grow, you can easily adjust the 15-position no-rethread harness and headrest with one hand.

More features include cooling channels, premium padding, three infant inserts and built-in armrests.

Details

  • Stages: Infant, Convertible, Harness Booster, High Back/Belt Positioning Booster
  • Overall dimensions: 24.5” H x 17.5” W x 18.5”D
  • Product weight: 28 lbs
  • Rear facing capacity: 5-50 lbs, Max 49”
  • Forward facing capacity: 30-120 lbs, Max 63”
  • Number of recline positions: 9
  • Number of head rest positions: 10
  • Number of crotch strap positions: 3
  • Car seat features:
    • Belt tensioning plate
    • Level indicators
    • No-rethread harness
    • FAA approved
    • Fits three across
  • Number of cup holders: 2
  • Cleaning/care: Naturally flame-retardant fabrics are safe to machine wash & dry
  • Manufacturer’s Warranty: 1 year

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Customer reviews

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1 Review
Rated 3 out of 5
Loved 2024 version, new version uncomfortable
I purchased one of these car seats about 6 months ago for my car and loved it. It feels very safe and doesn't wiggle at all. Over Thanksgiving we purchased a second one for my husband's car. I was really confused to see that the model my husband received was slightly different than the one I purchased 6 months ago. This new version has an additional "positioning layer" that you can't remove. Thus my toddler sits higher and more forward in this new model. The problem with this is that even when
Dec 27, 2025
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