One4Life All-in-One Car Seat

Regular price$439.99
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2025-12-12 00:00:00

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This item is not returnable or refundable. Don't worry! If your order arrives damaged or defective, please notify us within 24h [adhering to White Glove delivery instructions if applicable] to obtain replacement parts or units completely free of charge. Modern Nursery simply chooses to follow the strictest of safety and health guidelines and can't accept returns for this item. See our Refund Policy

From the Same Collection

BPA Free

BPA [bisphenol A] is an industrial chemical found in plastic, epoxy resins, and even food and water containers. This chemical has been linked to adverse health effects in fetuses, newborns and children.

Potential FR Cross-Contamination

While no products sold on Modern Nursery have any added chemical fire retardants, some may be manufactured in the same facilities as others that do and therefore may have potentially been exposed to FR chemicals. If you're looking for a product that is 100% FR-free, we have those too - just look for the Fire Retardant Free badge on the listing!

No PFAS

PFAS-free baby products do not contain poly-fluorinated alkyl substances which are a group of around 4,700 industrial chemicals that can be found everywhere around us.

No Added Formaldehyde

Formaldehyde is something you want to stay away from because it is a cancerous, strong-smelling, colorless gas commonly found in pressed-wood products.

Phthalates Free

Phthalates disrupt the body's hormones and some are known carcinogens. The chemicals from baby gear and wallpaper can be ingested, inhaled or absorbed.

From the first ride home, the first road trip with the family, to daycare drop-offs and loads of family adventures, the One4Life All-in-One Car Seat by Britax will be there through every milestone of your little one's life. Designed to grow with your little one from birth to big kid feats, this car seat and booster combo is perfect for any transition.

With an extended capacity of 50 lbs (49") in rear-facing mode, your little one can now ride rear-facing for longer. As they grow, the One4Life All-in-One Car Seat by Britax seamlessly transitions to forward-facing toddler mode (30–65 lbs) and later to belt-positioning booster mode (40–120 lbs). Featuring ClickTight technology for easy installation and the 15-position no-rethreading harness, installing and adjusting this car seat for the perfect fit is a five-finger exercise! For additional safety, this car seat features a high-strength steel frame reinforcing the seat structure for added stability, SafeCell technology that acts as a crumple zone absorbing collision energy, and a patented V-shaped tether helping reduce and slow down movement in the case of a crash, giving you extra ease of mind. Always thinking about baby's safety and health, the One4Life car seat is made using breathable knit fabrics that allow airflow and plush padding to make the rides more comfy, all while being naturally flame-retardant and 100% FR free! Only the best for baby's sensitive skin!

Features:

  • ALL-IN-ONE CAR SEAT: Designed to grow with your child for 10 years, easily converting from a rear-facing infant and toddler seat (5-50 lbs) to a forward-facing seat with a harness (30-65 lbs) and, finally, to a high-back booster (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!
  • TWO LAYERS OF ENERGY MANAGEMENT: The protective seat shell and foam-lined headrest help absorb impact energy and are designed to help keep your child's head, neck, and body safe.
  • TRUSTED BRITAX SAFETY: 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.
  • QUICK-PUSH, 9-POSITION RECLINE WITH EASY-READ INDICATORS: Helps you find the most comfortable fit for your child and the best angle for your vehicle.
  • PREMIUM COMFORT: The silky-smooth cover, plush cushioning, soft comfort pads, and tag-free headrest make for enjoyable rides.
  • THREE INFANT INSERTS: Help provide a better fit for infants 20 lbs and under.
  • 2 DISHWASHER-SAFE CUP HOLDERS: Help keep your little one's drinks or snacks within reach. Easily twist out for cleaning between rides.
  • COLOR-CODED BELT PATHS: Make it easy to route the seat belt through the correct paths for each car seat mode.
  • FLIP-FORWARD BUCKLE PAD: Stays out of the way for easy boarding.

Free of added fire retardants

Britax is fully transparent about their manufacturing process and guarantee that their car seats are completely free of any added fire retardants. However, their products are manufactured in the same facilities as other gear that does contain FRs so there is a chance of potential FR carryover. We believe in full disclosure and transparency and appreciate Britax's honesty and effort to produce fire resistant products without the addition of chemical fire retardants.

Dimensions: 25"H x 20.5"L x 19.5"W

Weight: 30 lbs

Weight Capacity Rear Facing: 5-50 lbs

Weight Capacity Forward Facing (5 pt harness): 22-65 lbs

Weight Capacity Forward Facing (booster): 40-120 lbs


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