Maxi-Cosi Kani 4-in-1 Convertible Car Seat
The Maxi-Cosi Kani 4-in-1 is a slim convertible car seat with 4 modes from rear-facing (5-40 lb) to backless booster (40-100 lb), and Maxi-Cosi says it fits 3 across in most back seats. Reference price USD 379.99.
SKU 43961963413558 · Added 2026-11-13
Availability: Listed in stock by the retailer when checked (2026-11-13); confirm color and stock at checkout
Hand-picked and curated by Raimundo Oliveira · Published · Catalog updated daily
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Check price at Maxi-Cosi ↗Sold by Maxi-Cosi. Prices in USD · Confirm delivery to your location.
Listed in the retailer’s New Arrival collectionBest for: Families with three kids or smaller back seats.
Key highlights
- Four modes in one seat
- Slim design, 3 across in most cars
- Rear-facing to 40 lb
- Backless booster to 100 lb
- Long-lasting value
Overview
A slim 4-in-1 car seat from rear-facing (5-40 lb) to backless booster (40-100 lb) that fits 3 across in most back seats.
Key features
- Four modes in one seat
- Slim design, 3 across in most cars
- Rear-facing to 40 lb
- Backless booster to 100 lb
- Long-lasting value
Who it is for
Families with three kids or smaller back seats.
What to check before buying
Always follow the car seat manual and your vehicle manual, register the seat with the manufacturer, and check height and weight limits for each mode.
Price and source
The reference price is USD 379.99, checked in the Maxi-Cosi catalog on Impact and on the official Maxi-Cosi US store on November 13, 2026. Prices, stock and colors can change at the retailer; confirm the final price, shipping and returns at checkout. This is an editorial selection based on the retailer's listing, not a hands-on test.
Pros and cons
Pros
- Four modes in one seat
- Slim design, 3 across in most cars
- Rear-facing to 40 lb
Cons
- Check limits for each mode
- Premium brand pricing
Frequently asked questions
Can three Kani seats fit across?
Maxi-Cosi says it fits 3 across in most back seats.
What modes does it have?
Rear-facing, forward-facing, high-back booster and backless booster.
Up to what weight?
Up to 100 lb in booster modes.
Source & price information
Maxi-Cosi official US store product page ↗
Checked 2026-11-13. This is a reference snapshot, not a live price feed.
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