Stage 4 | Duraflex ST – Simply put, Duraflex ST is the same material as regular Duraflex, but with increased glass for more response without the weight. Designed for cold temperatures.

Multi-Density Thermoformed EVA – Multi-density bushings sustain their function each season - unlike urethane rubber or other materials that change color and become brittle over time.

Extruded 3D Aluminum Heelcups – Designed for optimum heel hold and minimization of drag, Union 3D Extruded Aluminum heelcups are the strongest in the business.

Canted Footbeds

Force | Duraflex ST – Simply put, Duraflex St is the same material as regular Duraflex, but with increased glass for more response without the weight. Designed for cold temperatures.

Classic FLAD – Pull the lever away from the highback and quickly adjust your forward lean angle to suit the terrain in front of you.

Classic Pro Ankle Strap – A wider and more traditional design, this strap compliments the Force model perfectly - a time honored legend of a snowboard binding.

Ultragrip Toe Strap with Secure-Lock – Multi-positional options and thermoplastic anti-slip material keeps you locked in and on point. Each version has differing amounts of material based on weight.

Tool-less Strap Adjustment

Magnesium – Union's proven bombproof ratchet system, Magnesium buckles are light, sleek, and durable on the mountain.

Grade 8.8 Hardware – The strongest steel available on the market, Union's use of Grade 8.8 represents a commitment to delivering the strongest and most reliable bindings on the market today.

Universal Disk – 4x4, 4x2, Channel