The One4Life Slim all-in-one car seat takes your child from birth to big kid with trusted Britax safety, ClickTight installation, and a slim SpaceSaver 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 22.7 kg (50 lbs.), so your child can ride rear-facing longer. It easily converts to forward-facing toddler mode (up to 29.5 kg/65 lbs.) and high-back belt-positioning booster mode (up to 54.4 kg/120 lbs.) when your child is ready.

With a slim outside and spacious inside, the 44.5 cm (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 its naturally flame-retardant with no added FR chemicals.

One4Life Slim features an anti-rebound bar, a high-strength steel frame, a SafeCell 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 Slim is a convertible and harness-2-booster seat in one! It easily converts from a rear-facing infant and toddler seat (2.3-22.7 kg/5-50 lbs.) to a forward-facing seat (10-29.5 kg/22-65 lbs.) to a high-back booster seat (18.1-54.4 kg/40-120 lbs.)
• 10 Years of Use: This slim all-in-one car seat grows with your child from 2.3 to 54.4 kg (5 to 120 lbs.) and up to 160 cm (63) tall
• ClickTight Installation: Install with confidence in 3 easy steps: pinch to open, thread and buckle, click it closed!
• SpaceSaver Design: Slim outside, spacious inside! The 44.5 cm (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 Fabrics: The woven mlange accents give the car seat cover a tailored look, while the soft knit fabric on the padding and inserts helps keep your child comfortable during every ride
• Woven Accents on the Exterior and Comfort Pads: Made from recycled polyester
• 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
• Anti-Rebound Bar: Attaches to the car seat when installed rear-facing to help minimize movement in the event of a crash; must be removed when installed forward-facing
• SafeWash Fabrics: No more hand-washing or waiting for the cover to air-dry; just quick and easy cleanup so you can keep moving
• Naturally Flame-Retardant Cover: With no added FR chemicals