Modback Hibacks:These modular hibacks separate the lower and upper zones, using a strong and reliable Aluminum alloy heelcup, which on the NX2-Series also automatically triggers N.A.S.T.Y. The upper zone uses independently adjustable SupportPanels with model-specific shapes and flexes to deliver fine-tuned performance. * Power Triangle:The steel cable creates a structural triangular geometry for optimal energy transfer from hiback to baseplate. * LSR Buckles:These innovative LockingSlapRatchet-buckles give you the option to easily get in and out of your bindings any which way you like, whether SpeedEntry or SideEntry. You can slap them open with the large ratchet levers, make on-the-fly buttery smooth adjustments or simply lock them down with the lock/release lever. * Hybrid Powercapstrap:A revolutionary hybrid between Flow"s SpeedEntry convenience and conventional 2-strap SideEntry, merging the best of both. Responsive and unrestricted, the toe-cap delivers perfect boot positioning every time you kick in. * Rockered Baseplates:All of Flow"s baseplates are uniquely engineered to transmit energy directly to the board without a loss of efficiency or natural board feel. The minimized contact area with the board channels your power where it needs to go, while the rocker corners of the baseplate allow any type of board to maintain optimal flex.