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Union STR Snowboard Bindings 2025

6 Reviews
Select Style: white
Coming Soon
Estimated availability mid June to late July 2024

Ride Style
All Mountain
Versatile, designed for riding all types of terrain
Versatile and responsive, ideal for riding all types of terrain
Binding Straps
Ultimate support, comfort and fit with advanced design features
4-Hole + Channel
Fits standard 4-hole and The Channel® mounting systems


The Union STR snowboard binding is your all-mountain pass to comfortable progression. This mid-flexing binding is ideal for beginner to intermediate riders who crave a blend of comfort and control to take their snowboarding to the next level. Imagine cruising comfortably for hours on end, with a binding that supports you every step of the way. The STR's durable build is designed to last, while the comfortable design eliminates aches and pains, keeping you shredding longer. As you develop your skills, the STR is there to push you further. The flex pattern allows for precise turns and enough response to explore more technical terrain or dabble in the park. Built with durability in mind, the STR can handle the bumps and bruises that come with learning new tricks. So grab a pair of Union STR bindings and experience the perfect combination of comfort, control, and all-mountain versatility.

Key Features
  • Minimal Base Contact = True Board Flex
  • Duraflex Highback
  • Tool-Less FLAD (Forward Lean Adjuster)
  • Exoframe 3.0 Ankle Straps
  • Tool-Free Ankle/Toe Strap Adjustments
  • TS 2.0 Ultragrip Toe Straps
  • Aluminum S2 Ratchets with Steel Base
  • Size-Proportionate Fiberglass Index
  • Stage V Duraflex Baseplate
  • 3-Position Heelcup Adjustment
  • Extruded 3D Aluminum Heelcups
  • Canted Gas Pedals
  • Camber Disk
  • Multi-Density Thermoformed EVA Bushings
  • Grade 8.8 Hardware
  • Lifetime Warranty on Baseplate and Heel Cup


Key Features

Minimal Base Contact = True Board Flex - Union baseplates are designed to provide supreme strength while minimally interfering with your board's natural flex. Minimal board to binding contact means sweeter response, better board control, and improved durability.


Duraflex Highback - Union exclusive Duraflex material was specifically engineered to maintain consistent flex in a wide range of cold temperatures.

Tool-Less FLAD (Forward Lean Adjuster) - Easy adjustment allows you to customize your highback lean on the fly.


Exoframe 3.0 Ankle Straps - Thermoplastic anti-slip material form fits to any boot.

Tool-Free Ankle/Toe Strap Adjustments - No screwdrivers needed here. Simply flip the adjusters by hand to fine-tune your fit.


Size-Proportionate Fiberglass Index - Bigger riders require stiffer bindings. Union proportionally increases the fiberglass content in each size of their bindings so that any rider who straps in will have perfect support.

Stage V Duraflex Baseplate - This freestyle oriented baseplate comes canted with Duraflex injection. Ideal for those looking for more response at a price that won't break the bank.

3-Position Heelcup Adjustment - Minimize any toe or heel drag by dialing in your heelcups. Simply loosen heelcup screws and slide into correct position.

Extruded 3D Aluminum Heelcups - A new process removes as much excess material as possible in the heelcup to reduce weight while maintaining tried and true strength. Union heelcups undergo an anodizing process reinforcing the already bombproof apparatus with another 30-percent strength. It's serious strength in a streamline package.

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

Camber Disk - The Camber Disk adds a small amount of camber to the mounting disk to help keep your mounting hardware tight all season long. Compatible with 4x4, 4x2, and Channel mounting inserts, Union disks are bombproof and use the highest grade materials to insure the strongest connection between you and your board.

Multi-Density Thermoformed EVA Bushings - Union's innovative injected-EVA baseplate bushing system dampens vibrations underfoot to promote a more comfortable ride and a smooth, even board flex with no dead spots. Each binding size comes with its own durometer for custom performance.

Grade 8.8 Hardware - The strongest steel available on the market - the use of Grade 8.8 represents Union's commitment of delivering the strongest and most reliable bindings on the market today. Top to bottom.

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 put under, Union uses only the strongest steel (featuring a property class of 8.8) on all hardware.


Lifetime Warranty on Baseplate and Heel Cup - Covered under manufacturer lifetime guarantee against breakage of the baseplate or heelcup along with defects in materials or workmanship. This lifetime warranty DOES NOT cover broken bindings due to abuse or neglect, damage caused by any modification done outside the manufacturer's facility, or lost parts due to lack of hardware maintenance.

Highbacks, straps, ratchets and other components are covered under Union's 1 Year Warranty.

About Union

100% Ownership, 100% Focus - Union is 100% devoted to making the best bindings on the planet. From discovering new materials to CNC machining a new baseplate, everything is done in-house with zero outsourcing. Every single piece of a Union binding is completely exclusive to Union.


Men's Boot Sizes (US):8 - 10 10.5 - 13


Overall Rating
Reviewed by 6 customers
Best budget binding
by Neill Esparza in LEMON GROVE, CA (Verified Buyer)
Posted on 2/18/2023
Union STR Snowboard Bindings - blue
Excellent binding for the price. Hand me down straps and highback from pricier Union bindings make them feel like a steal. Very responsive while still being playful with the mid flex highback. Decent customization to get everything where you need or want it. The only bummer for me is the foam padding underneath doesn’t go all the way to the toe edge. So just be aware if your board has a matte finish on the top sheet every stance position or angle adjustment will show from the baseplate rubbing fight on the board. Still 5 stars though.
0 person has found this review helpful
by Darren Dencklau in SANTA ROSA, CA (Verified Buyer)
Posted on 2/2/2022
Union STR Snowboard Bindings - mustard
Replaced some older bindings with these no-frill, solid bindings that work great with my Thirty-two boots. Zero slippage, super responsive, and affordable.
0 person has found this review helpful
High Quality Bindings
by Ethan DeVries in WASHINGTON, DC (Verified Buyer)
Posted on 2/28/2021
Union STR Snowboard Bindings - stone
These bindings are fantastic and definitely built with quality material. I really like that the straps are durable and well made. Easy to get on and off.
0 person has found this review helpful
by Daniel Lopez in Rialto, CA (Verified Buyer)
Posted on 2/19/2021
Union STR Snowboard Bindings - burnt orange
Very responsive, easy to adjust.
0 person has found this review helpful
Good overall binding
by Jerod Richards in Parkersburg, WV (Verified Buyer)
Posted on 2/3/2021
Union STR Snowboard Bindings - burnt orange
Great lightweight binding with simple design. Looks like they could take a beating. Speak design and complements my board design nicely. My only reason for 4/5 is because the straps loosen with the slightest pull on the ratchet. The ratchets are not 100% metal also. A lot of polymer/plastic incorporated with their design.
1 person has found this review helpful
No regrets
by Nick I
Posted on 1/15/2021
Union STR Snowboard Bindings
Pair with ride Warpig and is the dream setup.
0 person has found this review helpful
Asked by Nathaniel on 2/7/2021
Will these fit with 4x4 holes?
Answered by Graig A (Tactics Employee) on 2/10/2021
Yes this will! These bindings work with 4x4, burton 3D and channel systems!
0 person has found this answer helpful
Asked by hiro on 9/27/2017
how much weight?
Answered by Graig A (Tactics Employee) on 9/28/2017
These weigh approximately 3.5lbs
0 person has found this answer helpful