SKU: 18458713269
britax onyx

britax onyx Siège d'Auto One4Life - Onyx

$26.23 $29.15
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Nov 15 - Nov 20

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For Your Every Summer RSVP, with Code: SUMMER15

Description

britax onyx Siège d'Auto One4Life - OnyxOne4Life takes your child from birth to big kid, surrounding them with trusted Britax safety. It easily converts from a rear facing infant car seat, to a forward facing 5 point harness seat, to a high back belt positioning booster seat. A high strength steel frame, crumple zone, and V shaped tether help absorb crash energy. Features ClickTight technology for struggle free installation and a SafeWash cover with no added flame retardant chemicals.

One4Life takes your child from birth to big kid, surrounding them with trusted Britax safety. It easily converts from a rear-facing infant car seat, to a forward-facing 5-point harness seat, to a high-back belt-positioning booster seat. A high-strength steel frame, crumple zone, and V-shaped tether help absorb crash energy. Features ClickTight® technology for struggle-free installation and a SafeWash® cover with no added flame-retardant chemicals.

Features:
- Converts from a rear-facing infant seat (5- 50lb) to a forward-facing 5-point harness seat (22-65 lbs) to a high-back belt-positioning booster seat (40- 120lb).
- 10 years of use: One4Life convertible to booster car seat grows with your child from 5 – 120 lbs and up to 63” tall.
- ClickTight® Installation: No stressing or struggling! Unobstructed seat belt paths clear the way for confident installation, and the automatic tensioner takes care of the tightening.
- Washer & Dryer Friendly: No more hand washing or waiting for the cover to air-dry. Just quick and easy cleanup, so you can keep moving.
- No Added FR Chemicals: Naturally flame-retardant fabrics & foam with no added FR chemicals.
- 15-Position, Quick-Adjust Headrest & Harness create the proper fit as your child grows.
- 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 helps you find the most comfortable fit for your child and the best fit for your vehicle.
- SafeCell Technology acts as a crumple zone, absorbing crash energy to help keep it away from your child.
- Easy-Read Level Indicators help you find the correct recline angle when installing the car seat.
- Stay-Put, Soft Comfort Pads help prevent the harness from rubbing against your child’s delicate neck.
- Flip-Forward Buckle Pad stays out of the way for easy boarding; made with extra padding for premium comfort.
- Built-In Cooling Channels & Ventilated Mesh improve air flow to keep your child comfortable.
- Color-Coded Belt Guides make it easy to route the seat belt through the correct paths for rear-facing, forward-facing, and booster mode.
- Removable Cover for easy cleaning without taking off the harness.
- Dishwasher-Safe Cup Holders easily twist out for cleaning between rides.
- Removable Infant Insert helps keep your tiny baby safe and comfortable under 20 lbs.
- Removable Head Pillow provides additional comfort for your growing baby.
- Easy-Pull Harness Adjuster lets you tighten the harness using just one hand.
- Premium Padding & Fabrics for superior comfort and a quiet ride.
- 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.
- Tag-Free Headrest supports your child’s head and neck without irritation.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 18458713269

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4.8 ★★★★★
Based on 14 reviews
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Product Reviews
L
Verified Purchase
Lawrence J Earl
Houston, US
★★★★★ 5
Great for the money
Color: Blue, Size: Large (Pack of 1)
Really beautiful, I'm not sure of what size I got but it is BIG, I have a 50lb Boston terrier and he gets lost in it, very soft with a lots of foam, he loves it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
D
Verified Purchase
DIY Girl
Whiting, US
★★★★★ 3
NOT WATERPROOF OR MACHINE WASHABLE
Color: Blue, Size: Large (Pack of 1)
Until today, I would have given this bed 5 stars. When I was looking for a new pet bed, I searched for “waterproof” and “machine washable”. My bad for not verifying those attributes before purchasing as I have learned Amazon search results are not reliable. Today one of my dogs peed on the floor and dragged his bed over it. When I discovered it, I wasn’t concerned because it is waterproof and machine washable. Uh, no it is not. The cushion was wet and was too big to adequately fit in my washer and I could tell the fabric wouldn’t hold up so I hand washed in the tub. But by this evening it was still pretty wet so I tossed it in the dryer on low - by itself - to get the damp out. Well, when I took it out, the cushion had ripped open. Meanwhile, I put the cover in the washing machine. It washed okay, but the plastic part that helps the the opening stay open came out and broke. I cannot find a hole to attempt to put it back in. I am really irritated that it isn’t better made.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 23, 2025
R
Verified Purchase
Rodger (and sometimes kids)
Draper, US
★★★★★ 5
Pug Loves His Bed
Color: Blue, Size: Large (Pack of 1), Color: Blue, Size: Large (Pack of 1)
Great bed. I thought it might be too big for our pug but it is just right so he can choose whether he wants to be inside or outside of the little canopy. He didn’t go under for the first couple of months but now he loves going under the canopy especially on cold days.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
L
Verified Purchase
LYDIA KASS
Alexandria, US
★★★★★ 5
Squishy and comfy
Very well made bed. Had I known about Amazon Basics brand sooner, I would have gotten two of these earlier. The other bed I purchased was a Snoozer XL and it arrived in a super compact state; the filler was even compressed and is therefore not as squishy and comfy as this Amazon Basics bed. The dog pictured is about 41 lbs, so it's perfect for her size (my other dog is a 70 lb pittie and he also fits on the bed).The 'hood' does detach, whereas the Snoozer one is permanently attached. Having the hood detach for washing the cover was another plus for this bed. The zippers are heavy duty and the 'sheepskin' is soft (I haven't washed the cover yet, so I don't know if it will pill). This bed arrived ready to use out of the box (very basic packaging); the filler was not compressed, so the bed is definitely more fluffy. This is the XL size and it is smaller than the Snoozer XL size but fits the corner of my room better. This is definitely worth the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 23, 2020
R
Verified Purchase
R. Gableman
Alexandria, US
★★★★★ 2
I regret my purchase
Color: Blue, Size: Medium (Pack of 1)
A few things: 1) this bed is much smaller than you think. Even if you measure it the way it’s constructed makes the area under the flap super small. 2) my dogs, burrow under blankets, covers, everything. But they don’t burrow under this. It’s designed to be appealing to humans, but dogs don’t care for it. 3) you probably already read this another reviews, but the flap doesn’t really stay up at all. That wouldn’t be a problem for my dogs, but it may be for yours. My recommendation – don’t buy this. It’s a gimmick. They make others with larger areas under the flap that are more expensive, but it’s worth the money instead of wasting it on this.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026

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