SKU: 14815650514
maxi cosi all in one convertible car seat

maxi cosi all in one convertible car seat Maxi-Cosi Kani 4-in-1 Convertible Car Seat

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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

maxi cosi all in one convertible car seat Maxi-Cosi Kani 4-in-1 Convertible Car SeatThe Maxi Cosi Kani 4 in 1 Convertible Car Seat is designed to be your childs car seat from the first ride home from the hospital through the big kid booster stage. This all in one car seat has 4 modes: rear facing car seat (540 lbs., 19"40"), forward facing car seat (3065 lbs., 34. 4"49"), belt positioning booster seat (40100 lbs., 43. 4"52"), and backless booster seat (40100 lbs., 43. 4"57"). Parents love Kanis slim car seat design which fits 3

The Maxi-Cosi Kani 4-in-1 Convertible Car Seat is designed to be your child’s car seat from the first ride home from the hospital through the big kid booster stage. This all in one car seat has 4 modes: rear-facing car seat (5–40 lbs., 19"–40"), forward-facing car seat (30–65 lbs., 34.4"–49"), belt-positioning booster seat (40–100 lbs., 43.4"–52"), and backless booster seat (40–100 lbs., 43.4"–57").

Parents love Kani’s slim car seat design which fits 3 across most back seats––perfect for growing families. Getting your little one in and out of the car is quick and simple with ClipQuik™, our magnetic chest clip that opens with 1 hand. This grows with me car seat features QuikFit, a 10-position headrest and harness system that adjusts with 1 hand without needing to rethread the harness. The Kani infant to toddler car seat has ReclineFit, the 5-position adjustable base with 1-hand recline for your little one’s comfort and a secure fit in your vehicle.

Key to the design of our car seat for babies and kids are the premium fabrics. EcoCare is our future-friendly, 100%-recycled fabric made from plastic bottles. The yarn produced is soft, comfortable, and breathable––perfect for your little one. All fabrics are machine-washable and dryer-safe.

And our soft, plush PureCosiTM fabric is made without added fire retardant treatment, which is better for both your child and our planet.

When your little one reaches the big kid stage, intuitive, 1-hand release converts the Kani all-in-one into a backless booster car seat in just seconds.

Engineered and tested to meet or exceed federal safety standards. Meets federal Side Impact standard.

Actual fit may vary. Not all children will comfortably fit in the car seat for the full weight and height ranges listed.

  • All in one car seat from birth to 10 years with 4 modes of use: rear-facing car seat (5–40 lbs., 19"–40"), forward-facing car seat (30–65 lbs., 34.4"–49"), belt-positioning high back booster seat (40–100 lbs., 43.4"–52"), and backless booster seat (40–100 lbs., 43.4"–57")
  • Slim car seat design fits 3 carseats across most vehicle back seats
  • Featuring EcoCare––100% recycled fabrics made from plastic bottles. The yarn produced is soft, comfortable, and breathable
  • ClipQuik™ magnetic chest clip that opens with 1 hand for quick and easy buckling
  • QuikFit is our integrated headrest and harness system that adjust easily without rethreading the harness and offers 10 positions to support all growth stages
  • Intuitive 1-hand release converts the grow with me car seat into a backless booster in seconds
  • ReclineFit provides 5 reclining positions for a relaxing and comfy ride for your little one
  • 2 removable cup holders have vegan leather accents and are top-rack dishwasher-safe
  • Removable, soft, plush infant head pillow and cushions provide extra support
  • Convertible car seat cover has vegan-leather trim
  • 1-click LATCH connectors for easy and secure installation
  • Engineered and tested to meet or exceed federal safety standards
  • Meets federal Side Impact standard

Specifications

  • Dimensions: 19.25"-30.25" H x 19" W x 29" D
  • Product weight: 23.2 lbs.
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: 14815650514

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4.5 ★★★★★
Based on 11 reviews
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J
Verified Purchase
Jyn
Natrona Heights, US
★★★★★ 4
Petite person's perspective
Color: Grey, Color: Grey
Full name on the box: Light Grey Bonded Leather/Mesh Air Executive Chair (Model: 43807) This review is from a petite female’s perspective I was browsing for couple months and this Serta chair stood out to me, mainly aesthetically. I don’t see many chairs in this color or style. It matched with the rest of my PC/desk setup. Positives -Seat is comfortable. -Lumbar support is good. It helps me sit very straight. -The casters were surprisingly easy to put in. I had to use some force with two of them though. They roll fine on carpet. -Easy assembly Neutral/Negatives -Paint of armrests is easily scratched. I accidentally scratched it while installing the back. -The black plastic caps used to hide the screws don’t fit well. The plastic inserts for hiding screws in arms don’t fit well either. It makes the chair appear cheap. (I will provide images) -Craftsmanship isn’t the best. Not noticeable from a distance though. -At lowest setting, my feet can’t touch the ground but being 4’11” it’s to be expected. -Height of the back is too high for my liking. I prefer a few inches shorter so I can tilt my head back to rest my neck. My fault for not realizing I should look into "mid-back chairs". -Head/top area is too firm. I prefer it to be squishy (e.g. Serta Smart Layers Verona or Siena). As another reviewer mentioned, don’t forget to remove the foam or cardboard behind the lumbar and head/shoulder. That is supposedly the last step when assembly is all done. **If you come across any issues/warranty, you contact TRUE INNOVATIONS, not Serta. (I will provide images)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 21, 2017
N
Verified Purchase
Not Your Average Joe
Fort Morgan, US
★★★★★ 1
***Serta should recall this chair!
Color: Grey
Serta quality and comfortable for office use only, casual home use isn't the same... the only reason I didn't give it 5 stars for ergonomics is that if you are not sitting upright in "office mode" and you want to slouch and relax, the seat makes you feel like you are always sliding forward in the chair? I assume that is because it's an "ergonomic" chair, but it is well built and worth the price in my opinion. ***Updated addition; after using the chair to work from home & casual use, it is still annoying to feel like it tilts forward unless you are sitting up perfectly straight! I have also noticed that if you get up or reposition yourself (due to the forward sliding) the seat height resets itself back up to the top!? So when you sit back down you have to lower the seat again... my last Serta chair never had these issues!! For the price point, this shouldn't be a chair I will be replacing after a few months - but not with another Serta! ****Second update = now 1 star! (Chair still looks new, I only work from home 1 day a week, and take great care of my things so there is no damage or even usage wear) After trying to make the best of this chair, it is even more annoying to use.. it now "groans" when any movement rocking back or forth... it still feels like it is forcing you to slide forward and feels like the chair wants your to fall out! Leaning back doesn't stay (no adjustment to keep from "leaning forward") so no matter what I do, I hate sitting in this chair more every day... and now I am very worried about buying another chair blind online! ***Serta should recall this chair! *****Third update = Chair still looks and feels brand new, but now randomly will make weird creaking and groaning noises with every movement and as an added bonus it randomly just sinks to the lowest level without warning!!! Typing away and it just starts sinking until it hits bottom! I don't know how an expensive chair could be so awful!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2024
A
Verified Purchase
Amazon Customer
Chelsea, US
★★★★★ 5
Office chair
Color: Grey
I bought this chair for my son and he’s very happy with the comfort of it. Very sturdy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026
C
Verified Purchase
Customer
Birmingham, US
★★★★★ 3
Good chair, Hensley is more comfortable
Color: Grey, Color: Grey
Received chair in a large box and assembly was easy. Instructions call for 2-person assembly but I set out to do as much as I could by myself until someone else was available. No tools needed other than the Allen wrench provided. I assembled the chair in under an hour by myself. The 2 person portion of the assembly was for attaching the seat to the wheel assembly but I managed to attach it myself with some careful maneuvering. The chair is nice and comfortable enough, but I was spoiled by the comfort of trying a different Serta model (Hensley, now discontinued) ina store. I couldn't find that model anywhere else and the floor model was SOOOO comfortable with its Serta Smart Layers. I was hoping Bryce would be a close second. After trying Bryce for a few days, I'd say its a distant third. If I never met Hensley, Bryce might have a higher rating. Update: based on other reviews, I made covers for the armrests to prevent wear and peeling of the padding cover.
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Reviewed in the United States on November 5, 2025
C
Verified Purchase
Crosland
West Palm Beach, US
★★★★★ 5
Great Serta Chair
Color: Black
Great chair. Definitely need two people to assemble. Heavy!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026

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