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Ships within 48 hours · Estimated delivery Sep 22 - Sep 27
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Description
maxi cosi car seat 1-4 years 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
4.1 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Spunky Pup toys are the best for aggressive chewers! ❤️
Size: 1 Count (Pack of 1), Style: Heart
We have an Amstaff (American Staffordshire Terrier) who is definitely an aggressive chewer and a known toy destroyer. That's just how she enjoys her toys, lovingly tearing them to shreds and pulling their "guts" out. Sometimes she will allow the toy carcass to last a while so she can continue to play with whatever is left of it for a while longer.
It has honestly been a challenge to find durable toys that she can't destroy, but Spunky Pup toys seem to be one of the only brands that can actually withstand our dogs tough love! Her first Spunky Pup toy we got her was a squeaky blue diamond gem, much like this heart gem, and it is still completely intact after several months of use! She loves it and we love the fact that it's so durable that she hasn't been able to destroy it. It squeaks and it bounces around sporadically, the unpredictability of not knowing which way its going to bounce adds a new level of excitement which seems to keep her attention a little longer.
She loves her diamond and she was super excited to get her new heart gem! They're pretty similar, so she loves them both, although the heart one seems to be just a little smaller and therefore a little easier to catch in her mouth. But it doesn't stop her from trying (and most of the time succeeding) to catch the diamond one in her mouth, it's just not as easy to catch as a normal ball.
Spunky Pup toys are really durable and super adorable! We are definitely going to be buying more Spunky Pup toys to add to her growing collection. 100% recommend for aggressive chewers!
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Reviewed in the United States on January 26, 2024
★★★★★ 5
My dog LOVES this toy!
Size: 1 Count (Pack of 1), Style: Heart, Size: 1 Count (Pack of 1), Style: Heart
I think she likes this toy because when it bounces it bounces irregular. She isnt real had on toys. Especially for 80 lbs. There is a diamond too from the same maker. She has had that for years. It still squeaks and has no holes in it. It is made of thick rubber. I bought one for my daughter's dog who is 50 lbs, but is a chewer. She took a chunk out of it the first day. No damaged enough that it was unsafe and that she had to take it away. Her dog also really enjoys this toy.
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Reviewed in the United States on December 11, 2025
★★★★★ 5
My Frenchie ,Gordon is obsessed with these! We have three of them now, and will buy more!
Size: 1 Count (Pack of 1), Style: Heart, Size: 1 Count (Pack of 1), Style: Heart
We bought one for Gordon our Frenchie because it looked like a good chewy toy. He fell in love with it carrying it all over the house and on his walks around the neighborhood ...we named it Toy-Toy... it stays with him all the time...yup he sleeps with it...well it sprung a hole after tons of loving and I knew Gordon would be frantic looking for Toy-Toy if I just tossed it when it became time.. so I ordered two more...We also have a Yorkie named Jasper who really likes Toy-toy and plays with it when Gordy isn’t looking...2 more were needed! I will eventually buy more as Gordy is an heavy chewer. It is a little big for Jasper but he doesn’t care he bats it around and pounces on it..But these hold up for at least 6 month of continual chewing and fetch and all...ohhhh yess. we will definitely be buying more..please don’t stop selling these! Lol..
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Reviewed in the United States on August 30, 2020
★★★★★ 5
Zoey loves this brand
Size: 1 Count (Pack of 1), Style: Heart
Our German Shepard, Zoey, loves the Spunky Pups squeaky toys. This heart shaped one is slightly smaller than the blue diamond one. Zoey likes to walk around everywhere with it in her mouth, so we prefer this one more since it’s not as big.
The squeaking sound is medium-high pitched. It has great bounce as well. The toy overall is well made and will hold up over time.
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Reviewed in the United States on September 11, 2025
★★★★★ 5
Dog loves them
Size: 1 Count (Pack of 1), Style: Heart
The dog loves these, they last about a month so not bad for the price, he loves to chew on them
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Reviewed in the United States on February 10, 2026