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Ships within 48 hours · Estimated delivery Oct 2 - Oct 7
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Description
maxi cosi origin country 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:
- 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 26 reviews
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Product Reviews
★★★★★ 5
Great passport holder
I really like this family passport holder. This is the second one I buy since we travel with our kids internationally at least once a year.
It’s a good way to keep document organized and on the ready.
I like that it has space for four passport books, plus ID’s and cards. It also has a pen holder. And a couple zippered pockets.
We also travel with our dogs and this case kept all our family’s and pet’s documents in one convenient place.
It’s also easy to use. The zipper is easy to open and close. And I like that the strap is not on the zipper. The last holder I got has the strap on the zipper and when you opened it things could fall off if you weren’t super careful.
I like that little pocket on the front. It’s convenient to keep boarding passes handy.
The quality is great too. I didn’t even read about it being fire proof but that just makes it nicer.
And it’s pretty easy to keep clean because the material can be just wiped down and doesn’t stain easily.
We just keep or passports there and put them on our document area at home. So they’re ready to go whenever we need.
Overall a great product small families traveling.
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Reviewed in the United States on February 12, 2025
★★★★★ 5
Great passport storage for a family of 4!
This passport travel wristlet was perfect of or family of 4 to use while traveling. It was large enough to keep all of of our passports inside and also travel documents. I love that the material is fire resistant, but the material is slightly tacky b/c of that. Not a big deal for me, but something worth noting. I don't mind the material b/c it gives me peace of mind when storing my passports inside that if there is a fire, our passports will be protected. Overall, I think this is a great option to safely store and travel with your passports!
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Reviewed in the United States on April 22, 2025
★★★★★ 4
Mr
Good
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Reviewed in the United States on April 25, 2026
★★★★★ 5
This will be great at the airport for international flights
Wow. This has pockets for four passports; six pockets that will easily hold 18 credit, debit, insurance, membership, library... cards; photo id slot, mesh pocket for monetary notes or some change; a large inside zippered area perhaps for personal items; another full length pocket behind the credit cards for paperwork and a slot on the front fo boarding passes, the passport, phone, whatever.
This is going to be so handy for an international trip, keeping passport(s), boarding passes, itinerary, phone and more all together and very easily accessible.
With all these card slots, I may start carrying it on a daily basis with my phone in it. I've never before found a wallet that could hold all the cards I'd like to be carrying every day; but have to swipe out depending the day's destination; because there's no room for them all in a phone or standard wallet.
The surface feels rubberized with a good grip. It's light weight and the detachable strap is definitely appreciated. What a help this will be to stay organized. Being fireproof and RFID blocking are excellent bonuses.
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Reviewed in the United States on December 19, 2024
★★★★★ 4
Perfect for traveling
Strap broke off
Easy to use, perfect size to carry around
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Reviewed in the United States on November 23, 2025