Flite Duraflex Base – An even mold flow design created during injection provides Duraflex strength with less overall nylon material. Duraflex material was specifically engineered to maintain consistent flex in a wide range of cold temperatures. This material is exclusive to Union, so you won't find it anywhere else.
Thermoformed EVA Bushings – Thermoformed Bushings sustain their function season after season - unlike competitors who use urethane, rubber or other materials that change color and become brittle over time.
Extruded 3D Aluminum Heelcups – The rigidity and strength of Extruded Aluminum acts like a roll cage on a race car - stiffening the entire chassis. The male/female connection with the base provides seamless response.
Classic Ankle Straps – Pre-curved, multi-layer strap core conforms to the boot and eliminates foot pain. These straps are easy to adjust, easy to set up, and comfortable ride after ride.
Ultragrip Toe Straps – Multi-positional options and thermoplastic anti-slip material keeps you locked in and on point.