maxi cosi 4 years plus MAXI COSI Kani 4-In-1 Convertible Car Seat
SKU: 6234045844
maxi cosi 4 years plus

maxi cosi 4 years plus MAXI COSI Kani 4-In-1 Convertible Car Seat

Sale price$25.30 Regular price$28.11
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Ships within 48 hours · Estimated delivery Jul 2 - Jul 7

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Description

maxi cosi 4 years plus MAXI COSI Kani 4-In-1 Convertible Car SeatA four in one convertible car seat that accommodates children from birth through age ten, with an ultra slim profile for three across seating and auto magnetic chest clip for fast, secure buckling. Key Features Four Modes of Use: Rear facing infant seat (2. 318 kg 540 lbs), forward facing harness seat (1029. 5 kg 2265 lbs), high back belt positioning booster (1845 kg 40100 lbs), and backless booster (1845 kg 40100 lbs). Ultra Slim Design: Narrow

A four-in-one convertible car seat that accommodates children from birth through age ten, with an ultra-slim profile for three-across seating and auto-magnetic chest clip for fast, secure buckling.

Key Features

  • Four Modes of Use: Rear-facing infant seat (2.3–18 kg / 5–40 lbs), forward-facing harness seat (10–29.5 kg / 22–65 lbs), high-back belt-positioning booster (18–45 kg / 40–100 lbs), and backless booster (18–45 kg / 40–100 lbs).
  • Ultra-Slim Design: Narrow profile allows three car seats to fit side by side across the back seat in most vehicles without compromising safety or comfort.
  • ClipQuick Auto-Magnetic Chest Clip: Magnetically guided buckle snaps into place for quick, frustration-free fastening — even with a squirming child.
  • 10-Position Headrest with No-Rethread Harness: One-hand headrest lift automatically adjusts the harness straps to match your child's growth, eliminating the need to manually rethread.
  • One-Click UAS Installation: Self-retracting UAS (LATCH) connectors simplify installation for a confident, secure fit in your vehicle.
  • Machine-Washable EcoCare Fabrics: Seat cover made from 100% recycled plastic bottles is soft, breathable, machine washable, and dryer safe for easy care.

Specifications

Brand Maxi-Cosi
Product Type Convertible Car Seat (4-in-1)
Rear-Facing Weight Range 2.3–18 kg (5–40 lbs)
Forward-Facing Weight Range 10–29.5 kg (22–65 lbs)
Belt-Positioning Booster Weight 18–45 kg (40–100 lbs)
Backless Booster Weight 18–45 kg (40–100 lbs)
Headrest Positions 10
Recline Positions 5
Installation One-click UAS (LATCH) connectors
Harness 5-point with no-rethread adjustment
Cup Holders 2 removable, BPA-free, vegan leather wrapped
Fabric EcoCare 100% recycled; machine washable & dryer safe
Safety Meets or exceeds federal safety standards


Frequently Asked Questions

How long can my child use the Maxi-Cosi Kani?

The Kani is designed to serve your child from birth through approximately 10 years of age, spanning four distinct modes. It starts as a rear-facing seat for infants and transitions all the way to a backless booster for children up to 45 kg (100 lbs).

Can the Kani fit three-across in my vehicle?

Yes. The Kani features an ultra-slim profile specifically engineered to allow three car seats across the back seat of most vehicles. Actual fit may vary depending on your vehicle's interior dimensions.

How do I convert the Kani to backless booster mode?

An intuitive one-hand release mechanism lets you detach the seat back in seconds, instantly converting the Kani into a lightweight backless booster without tools or complicated steps.

Warranty: Maxi-Cosi products are backed by a limited warranty. Please visit the Maxi-Cosi website or contact their customer support team for complete warranty terms, coverage details, and any registration requirements that may apply.
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: 6234045844

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Debbie
Cuba, US
★★★★★ 5
Good buy
Second time purchasing a variant of this item. Of good quality, no accessories were missing, material is very good, true to colour and does not fade easily, fit exact, hence size up if needed.
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Reviewed in the United States on May 7, 2026
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Alexis
Battle Creek, US
★★★★★ 5
Perfect for my son!
Color: Purple, Size: 7 Years, Color: Purple, Size: 7 Years
Loved that the pants were adjustable and it fit my son perfectly and was shipped fast for Halloween! This was cheaper than a Halloween costume but the quality was 10x better than any bulk Halloween costume store ! We did a DIY joker & I absolutely loved how it turned out ! Definitely could use this for a formal event !
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Reviewed in the United States on February 28, 2026
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Natacha Pierre Louis
Waukegan, US
★★★★★ 5
Is a nice formal suit set
The pant was a little bit too long
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Reviewed in the United States on December 26, 2025
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rachel
Omaha, US
★★★★★ 5
Great 4 piece for a wedding!
Color: Black, Size: 12 Years
My so. Is 10 years old but super skinny and super tall. The pants had an adjustable waist which was perfect for me to adjust to his skinny waist. The length was perfect. The material was great and it was well made. The tie was super easy to put on and the vest has an adjustable band on the back. This was perfect for a wedding he was attending. He looked so handsome! Great price too.
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Reviewed in the United States on October 18, 2025
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Valerie
Belleville, US
★★★★★ 4
Great suit order well ahead in case need resizing
It great! My son loves suitz , the only reason I took a star is because the pants were past his ankle very short so we ended up have to use other pants. The shirt and vest fitted perfectly!
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Reviewed in the United States on January 22, 2026

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