The Clek Foonf convertible car seat is built like a tank, designed for both revolutionary forward-facing safety performance and extended rear-facing use allowing for most kids to remain rear-facing until their fourth birthday. Adjustable Headrest provides a protective place to rest sleepy heads Smooth Recline with 2 forward-facing and 2 rear-facing recline options Engineered for comfort, with padded EPP Foam cushioning Removable seat cushion makes the rear-facing belt path easy to access. The cushion can come off without having to uninstall the seat, so it's easy-to-clean Built-in rear-facing lock-offs improve ease of use by tensioning and removing excess slack from belt. No-Twist Harness with convenient buckle stowage locations that make buckling in a breeze Adjustable crotch strap and 6 different harness heights provide for a flexibility in adjustment to fit a wide range of sizes and ages of children. Narrow Design – just 16.9 in. wide - saves space and makes 3-across seating possible Meets or exceeds all applicable Federal Motor Vehicle Safety Standards (FMVSS213) Recyclable through Clek Aircraft Approved