Union STR Snowboard Bindings 2025

Shred 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.

Flex Rating
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6 (1 Soft – 10 Stiff)

Baseplate

Stage 5 | Duraflex
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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
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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
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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
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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
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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
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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
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4×4, 4×2, and Channel compatible.

Specs

• Ability Level:
  Intermediate-Advanced

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  Ability Level

  Intermediate-Advanced
  Whether you’re a progressing intermediate exploring new runs and terrain, or an accomplished rider seeking new thrills, the majority of skiers and snowboarders fall into this level. Intermediate to advanced skis and snowboards may be somewhat wider or stiffer than beginner-intermediate skis and snowboards, usually with a stronger wood core and sandwich sidewall construction. Intermediate to advanced boots and bindings range from softer flexing freestyle options to stiffer choices built for stability at speed.

• Flex Rating:
  Medium

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  Flex Rating

  Medium
  The amount a snowboard flexes varies significantly between boards. Snowboardflex ratings are not necessarily standardized across manufacturers, so the flex may vary from brand to brand.Many manufacturers will give a number rating ranging from 1-10, 1 being softest and 10 being stiffest. Here at evo we have standardized the manufacturers' number ratings to a feel rating ranging from soft to very stiff. Generally you will find flex ratings of 1-2 as soft, 3-5 as medium, 6-8 as stiff, and 9-10 as very stiff. Flex ratings and feel may ultimately vary from snowboard to snowboard.

• Binding Style:
  Strap

• Binding Mount Pattern:
  2×4, 4×4, Channel

• Warranty:
  Limited Lifetime (Baseplates & Heelcups), 1 Year (All Other Parts)

Other Notes

Union products can only be shipped within the United States and Canada