The Chicco KidFit Zip Air Plus in Quantum is a versatile 2-in-1 belt-positioning booster car seat designed for children aged 4 to 12 years. It offers both high-back and backless booster modes, providing a long-lasting solution as your child grows. The seat features DuoGuard® Protection, with side-impact protection provided by a rigid shell and EPS energy-absorbing foam, and has 10 height positions to ensure a secure fit. The 3D AirMesh fabric enhances breathability, keeping your child cool during rides, while the Zip-Off cushions make for easy maintenance as they are machine washable. The ErgoBoost® Plus Seat offers additional comfort with triple foam padding and a cushioned leg rest. Installation is made simple with Quick-Release LATCH connectors and a SuperCinch® one-pull tightener, and the seat is easily converted to a backless booster for older children. It also includes a Bonus Kid Console for carrying small essentials. In high-back mode, the seat accommodates children weighing between 40–100 lbs and 38–57 inches tall, and in backless mode, it supports children weighing 40–110 lbs and 38–57 inches tall. The high-back mode weighs 12.1 lbs, and the backless mode weighs 7 lbs.