affordable all-mountain performance, robust and durable. looking to take your riding to the next level all over the mountain? the union str bindings are the perfect choice. these all-mountain/freestyle bindings boast top-of-the-line features, including a sturdy stage 5 base, stage 11 highbacks, and exoframe 2.0 straps. get ready to tackle higher drops and more technical lines with ease.highbackthe s11 highback with medium to hard flex, features a robust duraflex nylon design. a perfect highback for various riding styles and any terrain. the angle of the highback (forward lean) can be adjusted without tools.baseplatethe stage 5 duraflex base is great for any terrain and is very stable. the canted footbed provides a comfortable stance, while the thermoformed eva bushings offer excellent cushioning, which is maintained even in low temperatures.strapsstability and quick response on the outside, top fit and comfort on the inside - the exoframe 2.0 ankle strap offers the ultimate connection between rider and board. the ts 1.0 hexgrip toe straps' thermoplastic anti-slip material and multiple positioning options keep your boots bombproof and secure in the binding.