The Corso is a beautifully made modular stroller. It features FexCore adjustable rear suspension, a large zip expandable sun shade, parent-facing and forward-facing options for seat positions, a multi position reclining seat and a large storage basket. The stroller also functions as an infant seat carrier and works perfectly with the included KeyFit 30 Car Seat. This car seat is designed for 4-30 pounds and up to 30" tall. Please note, we do not guarantee compatibility.