Our industry-leading splitboard binding excels in the trees and powder, but is tough enough to handle more complex all-mountain conditions.Cutout baseplate design, medium flex Asym Rip 'N' Flip Highbacks, and a smaller ankle strap with a flex window combine to save valuable grams and deliver a surfy ride down. All Arc ST Bindings incorporate our industry-leading Tesla T1 technology. Our NEW 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 Pucks or Spark Canted Pucks.Weight: 1.38lbs/ea (628g) - 2.77lbs/pr (1256g) – Medium Asym Rip N Flip HighbacksST Touring BracketsST Whammy BarsPillow Line StrapsSizing and SetupWe have combined our two sizing charts together into one unisex line. 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 new ST Brackets.