One4Life takes your child from birth to big kid, surrounding them with trusted Britax safety. It easily converts from a rear-facing infant car seat, to a forward-facing 5-point harness seat, to a high-back belt-positioning booster seat. A high-strength steel frame, crumple zone, and V-shaped tether help absorb crash energy. Features ClickTight® technology for struggle-free installation and a SafeWash® cover with no added flame-retardant chemicals. Features: - Converts 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: No stressing or struggling! Unobstructed seat belt paths clear the way for confident installation, and the automatic tensioner takes care of the tightening. - Washer & Dryer Friendly: No more hand washing or waiting for the cover to air-dry. Just quick and easy cleanup, so you can keep moving. - No Added FR Chemicals: Naturally flame-retardant fabrics & foam with no added FR chemicals. - 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. - 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. - Premium Padding & Fabrics for superior comfort and a quiet ride. - 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.