Pay in installments of $5.53 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 10 - Sep 15
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
britax one4life carseat 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.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 9 reviews
Sort
Product Reviews
★★★★★ 5
Mastery is the goal, The Laws of Human Nature is the Truth
Format: Hardcover
Mastery is the goal. It’s us striving for our best. It’s optimistic. The Laws of Human Nature is what we actually are.
I read the first chapter and put it down for a week. I knew I trusted the author and that I could gain incredible insight in finishing the book. But I had to drop my expectations and comparisons to his other work and wrap my head around the journey I was going to take. Now I am near the end of the book and feel incredibly connected to myself. Here’s why:
I’ve become spoiled with the author’s other works—learning the game, how to win, manipulate, and grow. But to me, regarding his other works, it always felt like the weaknesses rested on my adversaries. I was above them. I had secret weapons. This is no longer the case. Maybe it’s also an age and perspective thing. I started his books in my early 20’s and now I’m older. I am more grounded in my ability to understand others and my arrogance has been replaced with curiosity. My existential crises come out in jokes rather than tears and I’ve accepted that absolutely everything is absurd. (I’ve also read The Denial of Death by Ernest Becker and come to terms with my impermanence which makes Laws of Human Nature less tragic to take on.)
I loved the scientific and historical examples throughout. Trusting the author, I didn’t mind that the format was a bit different than his other works. Typically, they begin with an historical example and are followed by a breakdown then a law. This book is the opposite. I didn’t mind being presented information first, followed by historical or scientific examples later as it gave me room to find the examples in my own life first. I think this book isn’t meant to be skimmed and that the formatting is intentional.
The reader needs to be ready to look at the uglier parts of themselves. To really delve in, I had to realize that I am not the exception to any of the rules or laws outlined in his other work. I am the rule. I almost wished I had read this one first. I’ve used his other work to build my life circumstances, but not so often reflected on my own weaknesses in such a microscopic way as required by The Laws of Human Nature. It causes one to breakdown themselves and their processes and doesn’t throw a stone on the adversary or tackle external circumstances as much in my opinion. In Laws of Human Nature, I am both the adversary and the obstacle.
This book is a true exercise in humility and honest self-reflection. It’s not the game tape outlined in the author’s other works. It is the finish line. It brings us back to the beginning—our true ugly, flawed, selfish selves. Get through the grieving process to acceptance, and this is an incredible book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 28, 2018
★★★★★ 5
Lovely
Format: Paperback
Good book, but you know the usual has its fluff, but that’s all Robert Green books. However, the stories are unmatched and if you have a vivid imagination, you’ll be able to understand and comprehend what’s going on ,it’s lovely.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
★★★★★ 4
Different, but in a good way
Format: Paperback
I have read all of Robert Greenes previous books, and I always walked away in amazement. I would see the negative reviews those books received, but I would always ignore them and thank God that I did. That compelled me to buy this book once I saw it was released and once again, the negative review bugs are back out. Normally, I wouldn’t write a review on a book because I would rather the reader form their own opinion. This book is different, and I would like to address this for anyone who is a Robert Greene fan or in the process of becoming one.
This book is exactly what every human alive needs to read, which is why I am writing this review to stop the second guessers. It focuses on how our emotions are destructive and how we must be careful about how freely we let them out now. Yes, the style is different from his past books. He goes into narratives about the different emotions, what they can do, and how we can control them while occasionally touching on how they played out in history. For many fans of his previous books, this can be disappointing as we are used to reading thrilling tales throughout history and how they play into the law he is explaining in that chapter with side bar quotes of knowledge from historic figures. I understand why he could not take that approach with this book, as he wanted to focus more on explaining the emotions on a psychological level instead of a historical one.
Is there entertaining and historic tales in the book? Yes, somewhat but nowhere near like his past books. I ask that you open your mind to this book and allow your knowledge to grow in a world where emotional control is decaying. Like he said in this book, don’t let your emotional impulses cloud your judgement. Step back, take a second, reassess and approach this book with a clear mind. You will thank me for it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2020
★★★★★ 5
A must read for all young and old, although, the younger, the better!
Format: Kindle
Simply fabulous! The blend of great concepts, beautifully descriptive stories, insightful analysis, and fascinating narration made it a truly engaging experience.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 9, 2026
★★★★★ 5
In-depth and comprehensive
Format: Kindle
This book was so full of information about the human animal. Is the only wish I had this information earlier in my life. I wish my kids would read it, and perhaps they will. It's very in depth and leaves me reflecting on how I want to change some of my thinking and behaviors like no other book I've read. I wish I belonged to a book club just to discuss it with other readers!
I don't necessarily agree with everything that the author states. But it was a most thought provoking book and I read allot of books! Allot of work went into the writing of this book. Near perfect editing which I appreciated. I am a big fan of human psychology and it held my interest and kept me up too late not wanting to put it down!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2026