smooth freestyle performance. get this early release model before everyone else.the thermoformed eva footbed, duraflex st nylon and fused vaporlite cushioning blend together for a freestyle riding experience like you've never experienced before. soft, surfy and shock absorbing, yet responsive. the union legacy can handle anything.highbackthe legacy duraflex st highback with medium flex, is laterally stiff and slightly softer towards the middle. this construction offers freedom for tweaks while the binding is still responsive.baseplatethe stage 6 duraflex st base is union's lightest and strongest base to date and is extremely responsive. the fused vaporlite bushing system absorbs vibration and shock like nothing else. fused vaporlite is a material that is waterproof, more durable and more precise than any other eva material on the market.strapsthe forma lab ankle straps fit perfectly to the outside of your boots, are incredibly durable and light as a feather. the thermoplastic anti-slip material of the wide ts-2.0 toe straps keep your boots bombproof and secure in the binding. the straps come with aluminium buckles.