Arc ST Pro Splitboard Bindings The lightest and highest performing splitboard bindings in the world - made with incredible attention to detail and no compromises. The Arc ST Pro Splitboard Bindings feature all the same great assets as our standard Arc ST Bindings - ST Tech, T1 binding system, Tesla Snap Ramps, maximum baseplate cutouts, surfy Asym Highbacks, Pillow Line Straps with a flex window - but they are tuned up with premium materials and custom components. Learn more about the Pro Series on the Pro Binding Tech page. In the Box: Splitboard bindings, ST Brackets, T1 Heel Rests, aluminum mounting screws, and Spark Pocket Tool. What else do I need? A set of Spark Flat Pucks or Spark Canted Pucks. Weight: 1.22lbs/ea (522g) - 2.44 lbs/pr (1104g) - Medium Sizing and Setup Our unisex sizing means no men&';s or women&';s specific bindings, just splitboard bindings for splitboarders. *** ST Bindings are only compatible with ST Whammy Bars. Likewise, 21/22 and older T1 Bindings are not compatible with ST Whammy Bars and require a standard Whammy Bar. *** ST Bindings are compatible with older Tesla Brackets with brass bushings. Likewise, 21/22 and older T1 Bindings are compatible with ST Brackets.