Britax One4Life ClickTight All-in-One, Clean Comfort

$439.99 $399.00
(No reviews yet) Write a Review

One4Life takes your child from birth to big kid with Britax Safety and ClickTight Installation. It converts from a rear-facing infant car seat, to a forward-facing 5-point harness seat, to a high-back belt-positioning booster seat. ClickTight is as easy as buckling a seat belt, so you can install with confidence, every time. A high-strength steel frame, crumple zone, and V-shaped tether help absorb crash energy.

Product Features

  • Clean Comfort: Stain-resistant Nanotex technology; wicking fabric keeps baby cool & dry; extra padding offers premium comfort.
  • Coverts from a rear-facing infant seat (5- 50lb) to a forward-facing 5-point harness seat (22-65 lbs) to a high-back belt-positioning booster seat (40- 120lb). 
  • 10 years of use: One4Life convertible to booster car seat grows with your child from 5 – 120 lbs and up to 63” tall.
  • ClickTight Installation: Install with confidence, every time. You’ll know it’s right in just 3 easy steps: Pinch to open. Thread & buckle. Click it closed.
  • COOL FLOW MESH FABRIC: Improves air flow to keep your child cool and comfortable
  • 15-Position, Quick-Adjust Headrest & Harness create the proper fit as your child grows.  
  • Patented V-Shaped Tether with staged-release stitches helps slow and reduce forward movement during a crash.
  • High Strength Steel Frame reinforces the seat structure to help keep it sturdy and stabilized.
  • Quick-Push, 9-Position Recline helps you find the most comfortable fit for your child and the best fit for your vehicle.
  • SafeCell Technology acts as a crumple zone, absorbing crash energy to help keep it away from your child. 
  • Easy-Read Level Indicators help you find the correct recline angle when installing the car seat.  
  • 2 Layers of Side Impact Protection: Energy-absorbing shell and foam-lined surround your child’s head, neck &torso.
  • Stay-Put, Soft Comfort Pads help prevent the harness from rubbing against your child’s delicate neck. 
  • Flip-Forward Buckle Pad stays out of the way for easy boarding; made with extra padding for premium comfort.  
  • Built-In Cooling Channels & Ventilated Mesh improve air flow to keep your child comfortable.
  • Color-Coded Belt Guides make it easy to route the seat belt through the correct paths for rear-facing, forward-facing, and booster mode.
  • Removable Cover for easy cleaning without taking off the harness.
  • Dishwasher-Safe Cup Holders easily twist out for cleaning between rides. 
  • Removable Infant Insert helps keep your tiny baby safe and comfortable under 20 lbs. 
  • Removable Head Pillow provides additional comfort for your growing baby.
  • Easy-Pull Harness Adjuster lets you tighten the harness using just one hand.
  • Harness Holder Slots keep the harness straps out of the way while your child gets in and out of the seat.
  • 5-Point Safety Harness with diamond weave webbing. 
  • Tag-Free Headrest supports your child’s head and neck without irritation.

Recommended Usage

  • BELT-POSITIONING BOOSTER: 40 – 120 LBS | 44” TO 63”


  • Product Weight (lbs): 30
  • Product Dimensions (in): 20.5L x 19.5W x 25H
  • Seat Area Depth / Width (in): 13.25
  • Shoulder Width (in): 14
  • Harness Slot Heights (in): 15, 9”-19”
  • Buckle Strap Positions (in): 3, 5.5”-8.75” 
Shipping Cost:
Calculated at Checkout