Key Features:

• Materials - Grade 8.8 steel
• Ratchets - Aluminum S2 w/ Steel Base
• Heelcup - Extruded 3D Aluminum
• Disk Cover - Thermoformed Eva
• Bushing - Ote Fused Vaporlite
• Adjustability - Tool-less strap adjustment, highback rotation
• Forward Lean - 6 degrees non-adjustable 
• Canting - Yes
• Mounting System - Mini Disk, 2x4, Channel
• Flex - 5

In-depth Tech Specs:

• S15 Ultra Duraflex ST Highback - 6 degrees of preloaded forward lean hugs your boot and allows for quick edge-to-edge response. While the all new molecular highback bushing provides increased freestyle flex and rebound while riding. This unique highback construction is exclusive to Union Binding Company.
• Forma X Ankle Straps - Instant response meets all-day-long foot comfort. The Forma X ankle strap's construction combines our responsive Exoframe exterior with the padded comfort and flexibility of the Forma interior. Forms to fit perfectly with any boot on the market today.
• 5.0 Ultragrip Toe Strap - Multi-Positional options and thermoplastic anti-slip material keep you locked in and on point. The TS 5.0 Ultragrip toe strap is compatible with all boot brands and models.
• Molecular Bushing Bushing Footbed - Union's Molecular bushings provides spring-loaded take-offs and perfectly cushioned landings. 15% lighter than Union Fused Vaporite and guaranteed to minimize foot, ankle and knee fatigue. This is the future of freestyle binding design.
• Stage 11 ASYM Duraflex ST Baseplate - By removing excess material in the toe and heel of the baseplate, and utilizing a brand-new asymmetrical shape, we've been able to drastically increase the torsional flex of the binding. The Ultra's Stage 11 ASYM baseplate allows for 360-degree board flex and feel.
• TPE Outsole - Exclusive to Union, this 100% new binding manufacturing process requires zero bushing gluing and adds another layer of dampening and vibration-cancelling material to the all-new Ultra.