britax shop Britax One4Life All-in-One Car Seat

It all starts with the first ride home. Then, there’s the first family outing. The first ride to daycare. Soon, you’ll be driving them to their first play date or soccer game. Throughout every change and milestone, you can count on one constant for your journey: the Britax® One4Life® all in one convertible car seat. This 3 in 1 car seat and booster seat combo takes your child from birth to big kid with trusted Britax safety, ClickTight® technology for easy installation, and parent-approved convenience features. One4Life starts as a rear facing car seat with an extended capacity of up to 50 lbs, allowing your child to ride rear facing longer. It easily converts to a forward facing car seat (30-65 lbs) and a belt-positioning booster seat (40-120 lbs)* when your child is ready. Thanks to ClickTight technology, you can install with confidence, every time. As your child grows, you can easily adjust the 15-position harness with just one hand — no rethreading required. This all in one car seat features a high-strength steel frame, SafeCell® technology, and a V-shaped tether, helping to give you peace of mind for the road ahead. The washer and dryer-friendly car seat cover is available in warm, neutral tones with a sophisticated aesthetic to match your lifestyle. Plus, it’s naturally flame-retardant with no added FR chemicals. The breathable knit fabrics allow airflow to help keep your precious cargo cool and comfortable**, while the plush padding helps make rides enjoyable. With thoughtful convenience features, premium comfort, and an all in one design, you can confidently navigate every stage of the journey with just one car seat — for life. *Due to regulatory changes, weight and height ranges may vary by model. Always follow the weight and height specifications listed in your product's user guide and on your product labels. **Select fashions only.

ALL-IN-ONE CAR SEAT: Designed to grow with your child for 10 years, this 3 in 1 car seat easily converts from a rear facing infant and toddler car seat (5-50 lbs) to a forward facing car seat with a harness (30-65 lbs) and, finally, to a high back booster seat (40-120 lbs) *Due to regulatory changes, weight and height ranges may vary by model; always follow the weight and height specifications listed in your product's user guide and on your product labels.
CLICKTIGHT INSTALLATION: Install with confidence in 3 easy steps: Pinch to open, thread and buckle, click it closed!
EXTENDED REAR-FACING CAPACITY: Accommodates children up to 50 lbs and 49” rear-facing, so your child can ride rear-facing longer
TRUSTED BRITAX SAFETY: This all in one car seat is equipped with a steel frame, SafeCell technology, two layers of energy management, and our patented V-shaped tether. The seat is side-impact tested according to FMVSS 213a.* It is also tested to FMVSS 213 frontal impact standards. *FMVSS 213a sets side-impact standards for children up to 40 lbs and 43” with a 5-point harness. It does NOT include standards for testing harnessed children above 40 lbs and 43” or for booster mode.
SAFEWASH FABRICS: No more hand-washing or waiting for the cover to air-dry; just quick and easy cleanup so you can keep moving; the car seat cover is also naturally flame-retardant with no added FR chemicals
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 best angle for your vehicle