With the Chicco Keyfit 30 Infant Travel System, you will be able to travel in style with your baby. Designed especially for the Chicco KeyFit 30 Car Seat, the Cortina Stroller works as a travel system for your infant and a full-size stroller for your growing baby.KeyFit 30 Infant Car Seat:Energy-absorbing foam for improved side-impact protectionSecures baby from 4-30 lbs.Includes removable newborn insert for smaller babiesThickly cushioned seat pad and five-point harness for maximum comfortSpring-assisted level foot, bubble levels, and Center-Pull adjustment for easiest installationCortina Stroller:One-hand fold and automatic storage latchMulti-position, flat-recline seat with Memory ReclineParent and child cup holders and large storage basketAdjustable leg rest, canopy, and all wheel suspensionFor use from birth to 50 lbs.