Adapting from Day One to Year Ten The Fit4 Adapt 4-In-1 Convertible Car Seat utilizes an innovative combination of humidity-regulating fabric with patented 37.5 Technology and breathable mesh to help control your child's microclimate, keeping them cool when it's warm and warm when it's cold. One Car Seat 4 Stages to Grow The 4-Stage FitKit System makes it easy to secure your child correctly and comfortably from birth to big kid through multi-staged construction and easy-to-remove, breathable mesh layers. Combined with a 10-position Easy-Extend Headrest System, Fit4 Adapt offers room to grow through each unique stage, all the way up to 57" tall. Adapt with Dynamic Climate Control Fit4 Adapt features patented 37.5 Technology to draw away moisture and help maintain an ideal core body temperature. This innovative, humidity-regulating fabric is permanently embedded with naturally derived volcanic mineral particles to regulate your child's microclimate speeding evaporation to help cool or returning the body's own infrared energy to help warm. Strategically placed mesh fabric promotes airflow to keep your child cool and comfortable. Easiest to Install Correctly Top-rated installation features like premium LATCH connectors and a SuperCinch force-multiplying tightener make Fit4 Adapt the easiest all-in-one to install correctly. RideRight bubble levels work in tandem with the 9-position ReclineSure leveling system to provide improved vehicle fit and child comfort. The LockSure belt-tightening system helps to ensure a secure installation using the vehicle seat belt with an easy thread belt path and built-in lock offs. A slim design and space-saving CupFolders make Fit4 Adapt easy to fit and secure inside your vehicle. Protection at Every Stage DuoGuard offers two layers of protection with a rigid shell and EPS energy-absorbing foam that surround the head and torso throughout every stage. The seat shell is also reinforced with a steel frame. Fit4Stages.com As your child grows, scan the QR Code on the side of the car seat or visit www.Fit4Stages.com for quick & easy instructional videos and direction. Online help from Chicco there to guide you every step of the way. Features: The best FIT from day 1 to year 10 with patented 37.5 Technology and breathable mesh to control your child's microclimate; Naturally derived volcanic mineral particles embedded in the fabric speed evaporation to help cool or return the body's infrared energy to help warm; 4-stage FitKit System with machine washable fabrics for comfort and convenience; Slim design and space-saving CupFolders with push-button removal; 10-position, Easy-Extend Headrest System accommodates growth up to 57" tall; 9-position ReclineSure leveling system and RideRight bubble levels; Premium LATCH connectors and a force-multiplying SuperCinch tightener; DuoGuard head and torso protection; steel-reinforced frame; LockSure steel-reinforced seat belt locking system; Easy access QR code and Fit4Stages.com transition guide; Specifications Seat Weight: 29.5 lbs; Rear-Facing Capacity: 4-40 lbs; Forward-Facing Capacity: 25-100 lbs; Dimensions (in): 21.5 L x 19 W x 26.5 H;.