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STR
STR
STR
STR
STR
STR
STR
STR
STR
STR
STR
STR
Model Information

STR

Built To Charge

Ride the entire mountain without breaking the bank. The STR is the perfect intro to Union's All-Mountain binding category.

Regular price
179,90 €
Sale price
179,90 €
Regular price
Sold out
Unit price
per 
Tax included. Shipping calculated at checkout.
S M L
Size Chart

Find My Size | Based on Men's Size Chart .arrow icon union

US
EURO
UK
MONDO
6-7.5
8-10
10.5+
24-25.5
26-28
28.5+
5-6.5
7-9
9.5+
38-40.5
41-43
43.5+
4-6.5
7-8.5
9-11
21-23.5
24-25.5
26-28
2-4.5
5-6.5
7-9
34-37
38-40.5
41-43
11C-3
3-5.5
6-7.5
17.5-21
21-23.5
24-25.5
10K-2
2-4.5
5-6.5
28-34
34-37
38-40.5
Your Size Is S M L

Must select color and size.

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Specifications

Key Features

STR
exoframe bindings

Stage 5 Duraflex Baseplate

All day comfort and response for riding the entire mountain. The bombproof Stage 5 Duraflex baseplate is built to last. Backed by a lifetime warranty.

Baseplate Flex

Flexy
Rigid
exoframe bindings

STR2 Duraflex Highback

A perfect blend of flex and response for riding the entire mountain. The STR2 Duraflex highback is ideal for beginner to intermediate riders looking to up their game.

Highback Flex

Flexy
Rigid
exoframe bindings

Exoframe 2.0 Ankle Strap

Exframe 2.0 ankle straps provide a secure and locked in ride feel. Lightweight, super durable and a team and shop favorite.

Anklestrap Flex

Flexy
Rigid

TS 4.0+ Toe Strap

The all-new TS 4.0+ toe strap keeps you locked in for the ride down without letting you know it’s there. A new shorter buckle base helps to reduce weight and pressure points. Easily adjust to any boot with the quick snap of the pin adjustment, no tools needed.

Magnesium S1 Ratchets

The all-new Magnesium S1 ratchets are Union’s answer to the elements. A fully integrated spring protected from the harsh outside provides you with Union’s best ratchet to date. Longer life span and better spring return guaranteed.

Forged Carbon Gas Pedal

The Atlas FC's Forged Carbon gas pedal provides instant edge-to-edge response for charging the most technical lines and powering through hard carves. Extremely lightweight and only available from Union Binding Company.

B4BC

Sales: 2% Per B4BC Binding Sold is Donated Back to Boarding For Breast Cancer.

B4BC

Sales: 2% Per B4BC Binding Sold is Donated Back to Boarding For Breast Cancer.

Split flad 2.0

Fast and easy. Quickly switch from touring mode to ride mode in the blink of an eye. The new Explorer Split Forward Lean Adjuster (FLAD for short) has been upgraded for improved durability and easier transition with gloves.

Specifications

Binding Details

Technology
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
STR2 Duraflex
Comfortable, responsive and ready to carve up the mountain.
Ankle Strap
NEW Exoframe 2.0
Lightweight, super durable and provide a locked in ride feel.
Toe Strap
TS 1.0 Hexgrip
Multi-Positional options, thermoplastic anti-slip material and fits to any boot.
Ratchet
Aluminum
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.
Strap Adjustment
Traditional
Easily Adjust With A #3 Screw Driver
Canting
Yes
Suggested Board to Binding Flex
Boards and bindings come in a variety of stiffnesses for different types of riding. Every ridder has their own preference on how a board and binding should interact. Below is Union's suggestion of board to binding flex.
suggested board bindings suggested board bindings
Soft
Stiff
Disk Type and Compatibility
disk bindings

Camber Disk

disk bindings

4x4

disk bindings

4x2

disk bindings

Channel

Product Video

Union Exclusive Test Environment

Technological Innovations

Union Exclusive Test Environment
Union Headquarters is located a quick 45 minute drive from the closest gondola. Living and working in the heart of the Italian Alps gives us the opportunity to test in the morning, be back in the office by lunch, adjust / modify designs by the end of the day.

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01. General Info:

Men
Women
Youth

Find My Size | Based on 's Size Chart .arrow icon union

US
EURO
UK
MONDO
6-7.5
8-10
10.5+
24-25.5
26-28
28.5+
5-6.5
7-9
9.5+
38-40.5
41-43
43.5+
4-6.5
7-8.5
9-11
21-23.5
24-25.5
26-28
2-4.5
5-6.5
7-9
34-37
38-40.5
41-43
11C-3
3-5.5
6-7.5
17.5-21
21-23.5
24-25.5
10K-2
2-4.5
5-6.5
28-34
34-37
38-40.5
Your Size Is S M L

02. Riding Ability:

union bindings finderunion bindings finderBEGINNER
union bindings finderunion bindings finderINTERMEDIATE
union bindings finderunion bindings finderADVANCED

03. Riding Style:

FREERIDE
Steep, Deep, Hard Charging
ALL MOUNTAIN / FREESTYLE
Soft and surfy carving
ALL MOUNTAIN
Ride any terrain
STREET / JIBBING
Maximum freestyle flex
ALL MOUNTAIN / FREERIDE
Destroy the resort
CARVING / BOARDERCROSS
Instant edge-to-edge response
FREESTYLE / PARK
Jumps, rails, and pipe
SPLITBOARDING
Climb Up, Ride Down

04. Our Recommendation:

union loader
UNION BINDING CO. 2021/22
Must complete
all fields.