The Chicco MyFit? Harness + Booster Car Seat is designed to grow with children from toddler through big kid with easy transition from forward-facing five-point harness to booster mode. Nine headrest positions accommodate growth throughout both modes and work together with a four-position recline to support proper posture. An extra-deep ErgoBoost? seat with dual-density foam padding is ergonomically designed for superior comfort. With its slim design and space-saving features, MyFit? fits three-across in the backseat without compromising child (or passenger) comfort. The two CupFolders? conveniently fold in when not in use to maximize space. MyFit? includes a steel-reinforced shell and sculpted EPP energy-managing foam. Featuring Advanced Side Impact Protection (ASIP), MyFit? is engineered to meet the Federal Motor Vehicle Safety Standard FMVSS 213a - Side Impact. Easiest to Install The MyFit? is designed with smart functionality that makes it the easiest to install simply, accurately and securely. A