The Chicco MyFit Zip Air in Quantum is a versatile 2-in-1 harness and booster car seat designed to grow with your child from toddlerhood through big kid status. It features a 9-position headrest and a 4-position recline system to accommodate your child's growth and ensure proper posture. The seat is equipped with DuoGuard® side-impact protection, combining a rigid shell and EPS energy-absorbing foam, along with a steel-reinforced frame for enhanced safety. The 3D AirMesh fabric provides improved ventilation, and the zip-off design allows for easy machine washing. Installation is straightforward with premium LATCH connectors, a SuperCinch® tightener, and a LockSure® belt-tightening system. The seat also includes two dishwasher-safe CupFolders™ and a bonus Kid Console for added convenience. In harness mode, it's suitable for children aged at least 2 years, weighing between 25–65 lbs, and up to 54 inches tall. In booster mode, it's designed for children at least 4 years old, weighing between 40–100 lbs, and between 38–57 inches tall.