The Maxi Cosi Kani 4-in-1 All-in-One Convertible Car Seat is made to fit your child for a decade, one car seat with 4 modes of use from birth to 10 years old (5-100 lbs). Kani’s slim design allows a 3 across the back seat fit in most vehicles without sacrificing safety or comfort. The 10-position adjustable headrest and 5-position adjustable base allows for easy transitions to ensure a secure fit for your growing child. ClipQuick™ auto-magnetic chest clip gets your child buckled in securely and on your way quickly. When it's time to switch to a backless booster, the Kani converts in seconds with an intuitive one-hand release design. Premium detailing with vegan leather accents and featuring EcoCare soft, breathable, machine washable and dryer safe 100% recycled fabrics made from plastic bottles. Features: -4 Seats in One: Effortless transitions through all modes including rear-facing (5-40 lbs), forward-facing (22-65 lbs), belt-positioning booster (40-100 lbs), and backless booster (40-100 lbs). -Ultra Slim Design: Allows for a comfortable and secure 3 across fit in most back seats. -Intuitive one-hand release converts the Kani into a backless booster in seconds -Quick & Simple Install: One-click UAS (LATCH) connectors for easier installation. -Superb Fit: 1-handed lift to raise headrest and integrated no rethread harness provides 10 different positions to support all growth stages, whether rear-facing or forward-facing.5-position, 1-handed recline for maximum comfort and secure fit. -Quick & Secure Buckling: The ClipQuick™ auto-magnetic chest clip gets you on your way quickly. -Future Friendly Fabrics: Featuring EcoCare 100% recycled fabrics made from plastic bottles. The yarn produced is soft, comfortable, and breathable. Machine washable and dryer safe. -Designer Details: 2 vegan leather wrapped, easy-to-clean, removable BPA free cupholders and a plush cover with vegan leather details for a luxe comfortable ride. -Engineered & Tested: Meets or exceeds federal safety standards. -From birth to 10 years -Rear-facing: 5-40 lbs -Forward-facing: 22-65 lbs -Belt-positioning booster: 40-100 lbs -Backless booster: 40-100 lbs