UNION
Union STR Bindings 2025 - Black
Union STR Bindings 2025 - Black
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hred the slopes with confidence and style with the Union STR Snowboard Bindings, perfect for all-day adventures from groomers to powder. These durable, mid-flex bindings are your ticket to elevating your ride, whether you're just starting out or leveling up your snowboarding game.
Product Details
Flex
Flex Rating – 6 (1 Soft - 10 Stiff)
Baseplate
Stage 5 | Duraflex – Duraflex material was specifically engineered to maintain consistent flex in a wide range of cold temperatures. Exclusive to Union for snowsports products.
EXT Thermoformed EVA Bushing – 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
Highback
Stage 11 | Duraflex – Duraflex material was specifically engineered to maintain consistent flex in a wide range of cold temperatures. Super lightweight, incredibly durable and perfect for beginner to advanced freestyle riding.
Tool-less FLAD
Straps
ExoFrame 3.0 Ankle Strap – Rapid response, trusted by professional snowboarders.
TS 2.1 Tiles Toe Strap
Buckles
Aluminum S2 with Steel Base
Additional Features
Grade 8.8 Steel 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.
Camber Disk – 4x4, 4x2, and Channel compatible.
Men's Union Snowboard Bindings Size Chart
| X-Small | Small | Medium | Large | X-Large | |
| US Men's | * - 5.5 | 5.5 - 7.5 | 8 - 10 | 10.5 - 13 | 13 - 15 |
| US Women's | 4 - 6.5 | 6.5 - 8.5 | 9 - 11 | - | - |
| US Kids' | 3K - 5.5K | 5.5K+ | - | - | - |
| UK | 2 - 4.5 | 4.5 - 6.5 | 7 - 9 | 9.5 - 12 | 12 - 14 |
| Euro | 34 - 37 | 37 - 40.5 | 41 - 43 | 43.5 - 46 | 46 - 48 |
| Mondo | 21 - 23.5 | 23.5 - 25.5 | 26 - 28 | 28.5 - 31 | 31 - 33 |
