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Description
britax one4life premium Britax One4Life Slim All-in-One Car SeatThe 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 50 lbs., so your child can ride rear facing longer. It easily converts to forward facing toddler mode (up to 65 lbs.) and high back belt
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 50 lbs., so your child can ride rear-facing longer. It easily converts to forward-facing toddler mode (up to 65 lbs.) and high-back belt-positioning booster mode (up to 120 lbs.) when your child is ready. With a slim outside and spacious inside, the 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 it’s naturally flame-retardant with no added FR chemicals. One4Life Slim features 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.
- 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 (5-50 lbs.) to a forward-facing seat (30-65 lbs.) to a high-back booster seat (40-120 lbs.)
- 10 Years of Use: This slim all-in-one car seat grows with your child from 5 to 120 lbs. and up to 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 17.5” seat is designed to fit 3 across without compromising on trusted Britax safety and premium comfort.
- Premium Fabrics: The woven mélange 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
- 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
- Three Removable Infant Inserts: Help provide a better fit for infants 20 lbs. and under
- Accessible Color-Coded Belt Paths: Make it easy to route the seat belt through the correct path for each car seat mode
- Slide-Out Cup Holders: The dishwasher-safe cup holders slide out with ease for convenient cleaning and click back into place for a secure attachment during rides
\Cup-Holder-Free Option: Remove the cup holders completely and insert the armrest caps to save additional space - 15-Position No-Rethread Harness and Headrest: Adjust together quickly and easily with one hand to help create the proper fit as your child grows; no rethreading, ever!
- 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 with Easy-Read Indicators: Helps you find the most comfortable fit for your child and the correct angle for your vehicle
- SafeCell® Technology: Acts as a crumple zone, absorbing crash energy to help keep it away from your child
- 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
- Soft Comfort Pads: Help prevent the harness from rubbing against your child’s skin
- Flip-Forward Buckle Pad: Stays out of the way for easy boarding; made with extra padding for premium comfort
- Built-In Cooling Channels: Improve airflow to help keep your child comfortable
- Plush Padding: For superior comfort and a quiet ride
- 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: Provides adjustment points at the hips, shoulders, and between the legs
- Tag-Free Headrest: Supports your child’s head and neck without irritation
*Britax cannot guarantee 3-across fitment in all vehicles.
Specifications
- Dimensions: 24.5"H x 18.5"D x 17.5"W
- Weight: 28 lbs.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
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4.4 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 3
Three Stars
Will help you sleep.
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Reviewed in the United States on October 8, 2016
★★★★★ 5
Good
The only melatonin that works for me
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Reviewed in the United States on April 2, 2026
★★★★★ 5
Source Naturals Melatonin is the best!
My husband and I have been using Source Naturals Melatonin for almost 25 years. I have tried a few other brands, and I definitely think Source Naturals is the best! I once saw a program on Discovery channel about how Melatonin is an important heart antioxidant, and that after age 40 the Melatonin in our system goes way down. We had also just moved to a high altitude town, and I was having great difficulty sleeping because of the high altitude. We started taking Source Naturals Melatonin, and I was able to sleep like a baby. I really recommend the time release especially, and we also take a 1 mg sublingual lozenge to fall asleep more quickly.
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Reviewed in the United States on August 27, 2017
★★★★★ 5
Well researched information
Format: Paperback
It's carefully researched by an intelligent and qualified individual. Sources are all listed for people who want to do their own research.
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Reviewed in the United States on April 16, 2026
★★★★★ 5
The Three (3) Pillars of my bedrock testimony have been destroyed
Format: Paperback
Having been born and reared in the Church, it was not merely a "church," but it was "The Only True Church on the Face of the Earth." It was my identity, I served a misson, Branch President, H.P., Stake Mission President, sending my son on his mission next week, so imagine my sense of betrayal, and the helplessness and confusion I felt after reading this book. My three (3) pillars were: (1) a young man may spawn a lie, for personal motivations, but he can still be a Prophet, and nobody would carry a lie so far as to be killed for it; (2) No man could have written the Book of Mormon; and (3) the Temple Ceremony is so sacred and unusual that it could not have been imagined or contrived. Well, this most carefully documented, carefully written, carefully researched book, has all but destroyed my pillars. Fawn Brodie, Niece of the Prophet, David O. McKay, has done meticulous research and I have searched for but never found or read an official LDS Church response or debunking of it; I've searched the BYU F.A.R.M.S. site hoping for an academic, honest review of her evidence and hoping to find that Ms. Brodie's research was flawed or dishonest. But despite my motivations and wide-spread search, I have never read a criticism of her sources, or documented proof that her research is false, or that her conclusions are false, only that she had an agenda and some of her conclusions are specious and not well supported. Well, that is simply disengenuous criticism. To say that Ms. Brodie can only prove "A, B, C, and D," but "jumps" to a conclusion that "E" exists, is simply blind faith ignorance and dishonest academia. This book constitutes the "mysteries," that the Church teaches its members to stay away from. But it is hardly a mystery. This book explains with a clarity and insight never-before heard by an LDS member, how Joseph Smith wrote the Book of Mormon, how he practiced polygamy before receiving the alleged revelation; why he was tarred and feathered; exactly where the Temple signs and symbols came from; the extent Joseph would go to protect his power and authority, and many more "mysteries." No active member of the Church should read this book lest their eyes be opened. It hurts! Truth is not pleasant sometimes, why should it be. I just wanted it "straight," I didn't want to be lied to any longer. If the Church simply said, "we're a good church, doing good deeds, helping the poor, please give your tithes to help us, I would most certainly go. But the Church says, "we are the only true and living church on the face of the earth." To me, that's a challenge to find out for myself, which I did. Now, I am a "mormon in recovery." My entire belief system, every single word I've ever been taught, is a lie. I am undone. Now I must look to God, for answers that I thought only the LDS Church had.
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Reviewed in the United States on August 3, 2006