One4Life Slim All-in-One Car Seat
$
449.99
In Stock Soon
color
Raven Black
1
In stock soon - notify me when available
Overview
Highlights
- Fits child between 5-120 lbs
- Stages: Infant, Convertible, High Back/Belt Positioning Booster
- Does not rotate
- Comes with two cup holders
Description
As a convertible and harness-2-booster seat in one, this design grows with little ones for ten years. It starts rear-facing with an extended capacity of up to 50 lbs, so they can ride rear-facing longer. It then converts to forward-facing toddler mode (up to 65 lbs) and high-back belt-positioning booster mode (up to 120 lbs) when they’re ready.
With a slim outside and spacious inside, the 17.5” seat is designed to fit three across without compromising safety and comfort. ClickTight helps you install with confidence in three easy steps: pinch to open, thread and buckle, click it closed.
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 they 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.
What we about it
Ten years of use, from 5 to 120 lbs.
Details
- Stages: Infant, Convertible, High Back/Belt Positioning Booster
- Overall Dimensions: 18.5”H x 17.5”W x 24.5”D
- 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
- Fits three across
- Number of Cup Holders: 2
- Cleaning and Care: Car seat cover is safe to machine wash and dry
- Manufacturer’s Warranty: 1 year
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Customer reviews
2 Ratings
2 Reviews
Cannot tighten it on my own, unsafe.
We have both the Britax One4Life and Britax Poplar S for our two family vehicles. Unfortunately it is super challenging to tighten the straps on the One4Life slim, near impossible to get our daughter in to safety standards. We have tried every tool mentioned in Britax YouTube videos & user guides to mitigate this issue - taken the car seat apart to make sure straps aren’t tangled, removed all newborn & infant inserts, removed shoulder pads. None of it helped. If my daughter is out of the car…
Nov 2, 2025
The jury is out on this new model.
We need a 2nd carseat, but much to my dismay the original one for life is no longer in stock in NZ. Replaced with these slim versions. Not impressed, these look dirt cheap but are very costly and the colour choices available are dull and pretty awful. I was looking forward to getting the original in coolflow carbon as that was the best colour choice available in my country. However I am very aware now that the US get all the good colours like blue, purple, red, black with orange trim. Why is…
Dec 24, 2024
