Surge ST Splitboard Bindings The Surge ST is trusted by professional big line riders and mountain town legends alike. It&';s a powerful binding perfect for big days and big lines. Solid baseplate design, stiffer Asym Rip 'N&'; Flip Highbacks, and more supportive Pillow Line Ankle Straps combine to give riders greater control in demanding terrain. All Surge ST bindings incorporate our industry-leading Tesla T1 technology. Our Smooth Touring (ST) Tech is featured on our ST Brackets and ST Whammy Bars. These components utilize a proprietary thermoplastic blend that is molded over the metal part reducing friction, increasing durability, and improving touring efficiency. In the Box: Splitboard bindings, ST Brackets, T1 Heel Rests, mounting screws, and Spark Pocket Tool. What else do I need? A set of Spark Flat Pucks or Spark Canted Pucks. Weight: 1.52 lbs/ea (689g) - 3.04 lbs/pr (1378g) - 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.