Style: This is an all-mountain snowboard binding, packed with adjustable features. Ride groomers, back-country, or park. Fine tune your equipment according to the environment you are snowboarding in. Features: 360-degree M3 EVA padding, tool free adjustable high-back, tool free adjustable ankle and toe cap, double actuating aluminum buckles with large thumb release lever, thick temper padded ankle & toe cap; both equipped with inset crank strap compartments for a completely hidden look. An extendable EVA padded base plate and universal 4x4 mounting discs system - mounting hardware included (disc, screws & washers) Material & Flex: Rated a 7 out of 10 for flexibility weighing only 4.5lb each. This is due to our fiberglass scaffold structure inside the polyurethane high-back and base plate; giving them flex and stability. Considered a light weight medium stiff binding. Sizing: Medium bindings fit a snowboard boot size (US, 6 - 9) Large bindings fit a (US, 9.5 - 12). The MODEL X Binding is compatible with all Snowboarding Boot Brands. Size 11.5 - 12 boot will require the extended base plate and extended toe cap features for a secure fit.