This No.1-rated convertible has a groundbreaking installation that leaves you with no doubt the seat is safely and correctly installed. 3 layers of side impact protection, a snug harness indicator, an impact-absorbing base and steel frame make for the best protection for your child. Typically up to 75 percent of car seats are installed incorrectly, but the revolutionary ClickTight Installation System is the safest and easiest technology on the market. Just open the front of the car seat, buckle the seat belt across and click the seat shut. That's all you need to do for rock-solid installation - the seat won't budge and you can travel worry-free with your child. Britax is the only child car seat brand that features world-class SafeCell Impact Protection. This integrated system of safety components provides unmatched protection for your child. These features include a steel frame, energy-absorbing base, V-shaped tether to minimize seat rotation and staged-release stitches that slow and reduce forward movement during a crash. Side impacts represent 25 percent of collisions and result in the most severe injuries. Britax designed the Advocate ClickTight with these statistics in mind. The seat has a deep foam-lined shell, quick-adjust head protection and side cushions, forming 3 layers of side protection - the best protection for your child. Almost 60 percent of car seat harnesses are too loose. Britax's patented Click & Safe Snug Harness Indicator takes the guesswork out of seating your little one and lets you know that your child's harness is within range of proper tightness with a click sound. Britax developed the Advocate ClickTight to safely and comfortably hold your child from birth all the way through the preschool years. The easy-adjust harness grows along with your child with 14 different positions. Change the height of the seat with just the push of a button - no inconvenient rethreading necessary.