Union STR Snowboard Binding Mustard 2025
Pickup available at Sanction World Headquarters
Usually ready in 2 hours
All-day comfort with enough control to enjoy the entire mountain. The Union STR is a durable, mid-flexing, all mountain men’s snowboard binding designed for beginner to intermediate snowboarders looking to push their snowboarding to the next level.
Binding Performance: (0-10)
Freestyle 5
All Mountain 7
Freeride 6
Performance 6
Binding Flex: (0-10)
Overall 6
Binding Weight: Grams 840
Baseplate: Stage 5 Duraflex - All day comfort and response for riding the entire mountain.
Bushing: EXT Thermoformed EVA - Shock absorbing EVA padding saves your heels and promotes a true and even board flex.
Heelcup: Extruded 3D Aluminum - Designed for optimum heel hold and minimization of drag. Lifetime warranty.
Highback: S11 Duraflex - Comfortable, responsive and ready to carve up the mountain.
Ankle Strap: Exoframe 3.0 - Lightweight, super durable and provide a locked in ride feel.
Toe Strap: TS 2.1 Tiles - Multi-Positional options, thermoplastic anti-slip material and fit to any boot.
Ratchets: Alu S2 w/ Steel - Fast in, fast out - Union aluminum ratchets are easy to use and made to stand the test of time.
FLAD: Tool-Less - Quickly adjust your forward lean angle to suit the terrain in front of you.
Hardware: Grade 8.8 Steel - The strongest steel available on the market.
Disk Cover: Thermoformed EVA - Extra cushioning.
Canting: Yes - 3º
Strap Adjust: Traditional - Easily Adjust with a #3 Screw Driver
Disk Type: Camber Disk
Compatibility: 4x4, 4x2, Channel
Fast, Reliable Shipping
FREE SHIPPING OVER $99 🇨🇦 Canada Only
We ship fast worldwide. Most orders go out the same or next business day. You will get an order confirmation right away, followed by tracking as soon as it ships so you always know where your gear is.
Binding Size by Boot Size
Match your boot size to the recommended binding size.
| XS | S | M | L | XL | |
|---|---|---|---|---|---|
| US Men | * – 5.5 | 5.5 – 7.5 | 8 – 10 | 10.5 – 13 | 13 – 15 |
| US Women | 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 |
| EU | 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 |
Note: Sizing varies by brand. Check manufacturer specs if between sizes.
Fit Tips
- Your boot heel should sit centered in the binding heelcup
- Straps should reach across your boot without over-extension
- If between sizes, size up for thick boots, down for low-profile
