Protect your child all around with the 2-in-1 Viaggio Shuttle Plus! Its flexibility to adjust all around allows it to fit your child perfectly. Transforming from an all-around adjustable booster to a backless booster, the Viaggio Shuttle Plus will grow with your child! The Ultimate in adjustability, The Viaggio Shuttle Plus has the unique capability to fully accommodate a child's growth with its 3D Total Adjust Technology. This means the booster can be adjusted in three different locations: 1) the headrest can adjust to five different positions vertically, 2) the upper backrest adjusts three positions vertically, 3) the side wings can expand out three positions. These adjustments can be made independently from each other, allowing for a truly original experience in comfort. Exceptional Security and Safety - Rigid Latch, Aluminium Backrest. Securing the Viaggio Shuttle Plus to the car is made easier with the integrated rigid LATCH, equipped with a blind lock attaching system, which prevents the seat from being accidentally released by another passenger. The rigid LATCH can tuck back into the base, allowing for an easy installation if LATCH is not available. An aluminium-reinforced backrest ensures safety and protection against whiplash in the case of a front-end accident and additional protection in the event of a rear-end collision. EPS throughout he side wings and headrest serves to absorb energy during a crash. Removable Backrest, The Viaggio Shuttle Plus has the ability to transform into a backless booster to grow with your child. No need to purchase a high back booster and a backless booster when the Shuttle Plus is 2-in-1. With the simple push of a button, the backrest can be removed. Made in Italy!Aluminum anti-Whiplash Bar with EPS Side ProtectionRemoveable Back Rest with all side impact protectionFor Children 40-120 lbs, Maximum Height 39”Head rest & Back rest is adjustable growths with your child, Rigid Latch for easy Car Seat Installation, Cup Holder Included.