The Britax Convertible Boulevard CS 70 features a Click & Safe™ mechanism that indicates an appropriate fit of the harness. Its SafeCell™ Technology is designed to compress in a crash, significantly lowering the center of gravity and counteracting forward seat rotation. Its integrated steel bars strengthen the connection to the vehicle, reducing any forward flexing. The Boulevard features patented, Energy-Absorbing Versa-Tether® - a tether webbing that slows forward movement and Tru Side impact protection within the shell. Its HUGS™ system straps across your child's midsection, thereby better anchoring children with higher centers of gravity. Other features include a no re-thread harness adjustment and multiple buckle positions. Lower latch connectors make for easy installation of the anti-slip base. Built-in lock-offs ensure a snug fit.