---
product_id: 724436803
title: "Britax One4Life Slim All-in-One Car Seat, 10 Years of Use, 17.5” SpaceSaver Design, Converts from Rear-Facing Infant Car Seat to Forward-Facing Booster Seat, ClickTight Installation, Parchment"
brand: "britax"
price: "₨84063"
currency: LKR
in_stock: false
url: https://www.desertcart.lk/products/724436803-britax-one4life-slim-all-in-one-car-seat-10-years
store_origin: LK
region: Sri Lanka
---

# 10 years convertible use ClickTight 3-step secure install 17.5” SpaceSaver slim design Britax One4Life Slim All-in-One Car Seat, 10 Years of Use, 17.5” SpaceSaver Design, Converts from Rear-Facing Infant Car Seat to Forward-Facing Booster Seat, ClickTight Installation, Parchment

**Brand:** britax
**Price:** ₨84063
**Availability:** ❌ Out of Stock

## Summary

> 🚗 Elevate every ride with Britax One4Life Slim — safety, style, and space-saving genius!

## Quick Answers

- **What is this?** Britax One4Life Slim All-in-One Car Seat, 10 Years of Use, 17.5” SpaceSaver Design, Converts from Rear-Facing Infant Car Seat to Forward-Facing Booster Seat, ClickTight Installation, Parchment by britax
- **How much does it cost?** ₨84063 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/724436803-britax-one4life-slim-all-in-one-car-seat-10-years)

## Best For

- britax enthusiasts

## Why This Product

- Trusted britax brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Space-Smart Design:** Slim 17.5” width fits 3 across in many vehicles without sacrificing comfort or safety.
- • **All-in-One Versatility:** Seamlessly converts from rear-facing infant seat to forward-facing booster for a decade of use.
- • **Effortless Installation:** ClickTight system guarantees a rock-solid, foolproof install in just 3 simple steps.
- • **Premium Comfort & Safety:** Soft knit recycled fabric, mesh cooling channels, and SafeCell® tech for plush, secure rides.
- • **User-Friendly Adjustments:** One-hand 15-position harness & headrest plus 9-position recline with easy-read indicators.

## Overview

The Britax One4Life Slim All-in-One Car Seat offers 10 years of adaptable use, converting effortlessly from rear-facing infant to forward-facing booster. Its patented ClickTight installation ensures a secure fit in 3 steps, while the 17.5” SpaceSaver design maximizes vehicle space without compromising comfort or safety. Crafted with premium recycled fabrics and advanced safety features like SafeCell® technology and a high-strength steel frame, it delivers trusted protection and plush comfort for growing kids. Easy one-hand adjustments and dishwasher-safe cup holders make it a top choice for busy, style-conscious parents.

## Description

The One4Life(R) Slim all-in-one car seat takes your child from birth to big kid with trusted Britax safety, ClickTight(R) installation, and a slim SpaceSaver(TM) design. As a convertible and harness-2-booster seat in one, it grows with your child for 10 years. It starts rear-facing with an extended capacity of up to 50 lbs., so your child 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.) when your child is ready. With a slim outside and spacious inside, the 17.5” seat is designed to fit 3 across* without compromising safety and comfort. ClickTight helps you install with confidence, every time. 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(R) crumple zone, and a V-shaped tether. As your child grows, you can easily adjust the 15-position no-rethread harness and headrest with one hand. With cooling channels, premium padding, three infant inserts, and built-in armrests, your child will love every ride. *Britax cannot guarantee 3-across fitment in all vehicles.

## Features

- All-in-One Car Seat: One4Life(R) Slim is a convertible and harness-2-booster seat in one! It easily converts from a rear-facing infant and toddler seat (5-50 lbs.) to a forward-facing seat (30-65 lbs.) to a high-back booster seat (40-120 lbs.)
- ClickTight(R) Installation: Install with confidence in 3 easy steps: pinch to open, thread and buckle, click it closed!
- SpaceSaver(TM) Design: Slim outside, spacious inside! The 17.5” seat is designed to fit 3 across without compromising on trusted Britax safety and premium comfort *Britax cannot guarantee 3-across installation fitment in all vehicles
- Premium Car Seat Cover: Features a soft knit fabric with woven mélange accents that are made from recycled polyester; the cover is safe to machine-wash and dry and naturally flame retardant with no added FR chemicals
- Trusted Britax Safety: Features a patented V-shaped tether, SafeCell(R) technology, a high-strength steel frame, and two layers of energy management
- Comfortable Rides: This slim car seat includes soft comfort pads, built-in mesh cooling channels, three infant inserts, plush padding, and a tag-free headrest
- Easy to Adjust: The 15-position no-rethread harness and headrest adjust together easily with one hand, and the 9-position recline has an easy-read indicator to help you find the correct angle for your vehicle
- Slide-Out Cup Holders: The dishwasher-safe cup holders slide out with ease for convenient cleaning and click back into place for a secure attachment during rides
- Accessible Color-Coded Belt Paths: Make it easy to route the seat belt through the correct path for each car seat mode
- Hassle-Free Cleanup: Extra space between the shell and base means you can clean under the seat with ease – and with minimal grooves in the seating area and base, you can wipe it down with no fuss

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Model Number | E1D437G |
| Product Dimensions | 46.99 x 44.45 x 62.23 cm; 12.7 kg |
| Item model number | E1D437G |
| Minimum Weight Recommendation | 5 Pounds |
| Maximum Weight Recommendation | 120 Pounds |
| Minimum Height Recommendation | 18 inches |
| Maximum Height Recommendation | 49 Inches |
| Material composition | 100% plastic |
| Care Instructions | Machine wash and dry cover |
| Number of reclining positions | 15 |
| Batteries required | No |
| Orientation | Rear and Forward Facing |
| Rear-facing maximum child weight | 50 Pounds |
| Forward-facing minimum child weight | 30 Pounds |
| Forward-facing maximum child weight | 120 Pounds |
| Harness type | 5-Point |
| Item Weight | 12.7 kg |

## Product Details

- **Brand:** Britax
- **Installation type:** Seat Belt
- **Colour:** Parchment
- **Orientation:** Rear and Forward Facing
- **Product dimensions:** 47D x 44.5W x 62.2H centimetres
- **Item weight:** 28 Pounds
- **Maximum weight recommendation:** 120 Pounds
- **Harness type:** 5-Point
- **Number of height positions:** 15
- **Minimum height recommendation:** 18 inches

## Images

![Britax One4Life Slim All-in-One Car Seat, 10 Years of Use, 17.5” SpaceSaver Design, Converts from Rear-Facing Infant Car Seat to Forward-Facing Booster Seat, ClickTight Installation, Parchment - Image 1](https://m.media-amazon.com/images/I/81+-eJrXeUL.jpg)
![Britax One4Life Slim All-in-One Car Seat, 10 Years of Use, 17.5” SpaceSaver Design, Converts from Rear-Facing Infant Car Seat to Forward-Facing Booster Seat, ClickTight Installation, Parchment - Image 2](https://m.media-amazon.com/images/I/91tiHGZC1bL.jpg)
![Britax One4Life Slim All-in-One Car Seat, 10 Years of Use, 17.5” SpaceSaver Design, Converts from Rear-Facing Infant Car Seat to Forward-Facing Booster Seat, ClickTight Installation, Parchment - Image 3](https://m.media-amazon.com/images/I/911F61K5LrL.jpg)
![Britax One4Life Slim All-in-One Car Seat, 10 Years of Use, 17.5” SpaceSaver Design, Converts from Rear-Facing Infant Car Seat to Forward-Facing Booster Seat, ClickTight Installation, Parchment - Image 4](https://m.media-amazon.com/images/I/91VFJ75iI2L.jpg)
![Britax One4Life Slim All-in-One Car Seat, 10 Years of Use, 17.5” SpaceSaver Design, Converts from Rear-Facing Infant Car Seat to Forward-Facing Booster Seat, ClickTight Installation, Parchment - Image 5](https://m.media-amazon.com/images/I/81a1Cixi1ZL.jpg)

## Available Options

This product comes in different **Color** options.

## Frequently Bought Together

- Britax One4Life Slim All-in-One Car Seat, 10 Years of Use, 17.5” SpaceSaver Design, Converts from Rear-Facing Infant Car Seat to Forward-Facing Booster Seat, ClickTight Installation, Parchment
- Britax Anti-Rebound Bar Accessory - Compatible with Britax One4Life Car Seats , Black
- Britax Car Seat Waterproof Liner - Moisture Wicking Fabric + No Slip Grip + Machine Washable + Crash Tested

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.lk/products/724436803-britax-one4life-slim-all-in-one-car-seat-10-years](https://www.desertcart.lk/products/724436803-britax-one4life-slim-all-in-one-car-seat-10-years)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-01-25*