Duraflex™ ST 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.

Vaporlite Bushings – The evolution of closed cell foam -- natural canting and next level vibration dampening. Season long foot comfort.

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.

Legacy Highback – Designed specifically to contour a woman's calf and foot, the highback's streamlined design provides a seamless boot interface with lateral freedom for maximum leverage. The highback is also extremely responsive and durable.

SonicFuse Straps – Features a multi-layer composite strap core that is fused together to form a single, articulated strap. This minimization of stitching increases the straps durability and reduces weight. Additionally, it evenly distributes pressure across your boot improving comfort and lateral mobility.

UltraGrip Toe Straps – Multi-Positional options and thermoplastic anti-slip material keeps you locked in and on point -- a simplistic, yet highly durable design.

Injected Magnesium Buckles – This high-tech process produces a material four-times the strength of aluminum with only half the weight. Plus, magnesium is easily recycled and remains the eighth most abundant material on the planet.

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

699 Grams – One of the lightest bindings ever produced, the Legacy focuses the strength of Duraflex ST in critical areas of the base for power, and takes full advantage of EVA dampening everywhere.

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.