Duraflex MD Baseplate – A minimal contact footprint allows for even board flex and is compatible with the 4x2 mounting pattern, as well as The Channel from Burton. With a mere 5% binding to board contact area, the MD Base enhances natural board flex, boosting performance and overall durability.

Full Bottom Multizone EVA Bushing – Multizone Full Bottom Bushing System allows for natural canting, incredible vibration damping and a surfy feel.

Mini Disk (MD) – A minimal contact footprint allows for even board flex and is compatible with the 4x2 mounting pattern, as well as The Channel from Burton.

Asymmetric S2 Highback – Union took their multi-zone philosophy and tweaked it towards the outside for boosted lateral support and control when pressing, buttering and spinning off jumps.

3D Asymmetric Straps

Injected Aluminum Buckles – Union's Aluminum Buckles are the perfect combination of function and reliability. Strengthened with springs and a long lasting ratchet mechanism for easy, fast ratcheting power.

Extruded 3D Aluminum Heelcup – Made of extremely durable extruded aluminium, designed to minimize toe drag while optimizing heel hold.

Canted Gas Pedals – Ideal for riders using a wide stance, Canted Gas Pedals supply extra leverage for ollie power. Canting also allows the ankle and knee joints to be aligned, alleviating pain.

Grade 8.8 Hardware – The most commonly used hardware is made from "mild steel" that has a property class of only 4.6. Considering how much stress a binding is under, Union uses only the strongest steel on ALL hardware.

Tool-Free Adjustments – No screwdrivers needed - Flip the levers for a quick and easy on-hill adjustment.

Union offers a lifetime warranty on baseplates and heelcups. If you break, or even crack your baseplate or heelcup during riding, they'll replace it for life. Guaranteed. All other parts are covered for 1 year from date of purchase.