Union Binding Co. | Europe

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Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Union Ultra
Model Information

Union Ultra

Women's Snowboard Binding

279,95 €
279,95 €
Sold out
Tax included. Shipping calculated at checkout.
Black White Blue
S M L
Size Chart
Only 0 left Only 0 left Only 0 left Only 0 left Only 0 left Only 0 left Only 0 left Only 0 left Only 0 left
Find My Size | Based on Women's Size Chart arrow icon union
Select
US
EURO
UK
MONDO
Select
*-5.5
5.5-7.5
8-10
10.5-13
13-15
2-4.5
4.5-6.5
7-9
9.5-12
12-14
34-37
37-40.5
41-43
43.5-46
46-48
21-23.5
23.5-25.5
26-28
28.5-31
31-33
4-6.5
6.5-8.5
9-11
2-4.5
4.5-6.5
7-9
34-37
37-40.5
41-43
21-23.5
23.5-25.5
26-28
7C-11C
11C-3K
3K-5.5K
5.5K+
6-10
10K-2
2-4.5
4.5-6.5
24-28
28-34
34-37
37-40.5
13.5-17.5
17.5-21
21-23.5
23.5-25.5
YOUR SIZE IS: One Mini XS S M L XL
Must select color and size.

Free shipping for orders over 139€

Main Information

Union Ultra

Introducing a new era of board feel—where comfort, response, and suspension work as one. The Union Ultra redefines board feel with a next-generation suspension system that flexes, rebounds, and absorbs impact with every movement. From baseplate to straps, every component is engineered to work in harmony—delivering a smooth, cushioned ride unlike anything you’ve felt before. Lightweight, responsive, and ultra-forgiving, the Ultra is snowboarding evolved.

Riding Category
Freestyle Rating: Freestyle bindings are designed for riders looking for the ultimate freedom, comfort and that “loose truck” feel. These bindings are generally best suited for riding park or riders looking for a more soft and surfy board feel.

All Mountain Rating: All Mountain bindings are generally mid-flexing and built to handle all terrain and all riding styles.

Performance Rating: Performance bindings are stiffer, provide instant edge-to-edge response, and the most stable board connection possible. Performance bindings are generally best suited for high speed carving or ridding steep technical terrain.

Freeride Rating: Freeride bindings are built for off-piste exploration, deep powder, and challenging backcountry conditions. They combine support, comfort, and responsiveness, allowing riders to tackle variable snow and steep terrain with confidence.
freestyle
Freestyle
Good
Great
freestyle
All Mountain
Good
Great
freestyle
Performance
Good
Great
freeride
Freeride
Good
Great
KEY FEATURES
  • Asymmetrical Mini Disk Baseplate
  • Union Exclusive Bushing Technology
  • All-New Highback Design
  • Ridden by: Jess Kimura and Henna Ikola
Weight
All listed binding weights area based on a size medium full pair, including disks and hardware. Actual product weight may vary by +/- 1%, and slight differences can occur between colorways.

1.64 KG

Binding Flex
Union Bindings come in a variety of flex ratings. The baseplate, highback, straps, bushing and disk all have different stiffnesses to help give a specific ride feel and function. Softer flexing bindings are generally used for more surfy or freestyle riding, while stiffer bindings are generally used for more hard charging and responsive freeriding.

Overall Flex - 6/10

FLEXY
RIGID
warranty union
THE UNION WARRANTY Lifetime for baseplate / heelcup,
2 year for everything else.
Rider: Jess Kimura
Video: Kevin Nolan
Specifications

Key Features

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Union Ultra
exoframe bindings

S11 Duraflex ST Baseplate

By removing excess material in the toe and heel of the baseplate, and utilizing an asymmetrical baseplate shape, we've been able to drastically increase the torsional flex of the binding. The Ultra's S11 Duraflex ST baseplate allows for 360 degree board flex and feel.

Baseplate Flex

Flexy
Rigid
exoframe bindings

S25 Ultra Duraflex ST Highback

6 degrees of preloaded forward lean hugs your boot and allows for quick edge to edge response. While a molecular highback bushing provides increased freestyle flex and rebound while riding. This unique highback construction is exclusive to Union Binding Company.

Highback Flex

Flexy
Rigid
exoframe bindings

Hybrid 1.0 Ankle Strap

Instant response meets all day long foot comfort. The Hybrid 1.0 ankle strap's construction combines our responsive Exoframe exterior with the padded comfort and flexibility of the Forma interior. Form fits perfectly to any boot on the market today.

Anklestrap Flex

Flexy
Rigid
exoframe bindings

TS 5.0 UltraGrip Toe Strap

Multi-Positional options and thermoplastic anti-slip material keep you locked in and on point. The TS 5.0 UltraGrip toe strap is compatible with all boot brands and models.

exoframe bindings

Magnesium S1 Ratchets

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.

exoframe bindings

Molecular Bushing

Union's Molecular bushing provides spring-loaded take offs and perfectly cushioned landings. 15% lighter than Union Fused Vaporite and guaranteed to minimize foot, ankle and knee fatigue. This is the future of freestyle binding design.

exoframe bindings

TPE Outsole

Exclusive to Union, this 100% new binding manufacturing process requires zero bushing gluing and adds another layer of dampening and vibration canceling material to the all-new Ultra.

exoframe bindings

Integrated 2-Stage Forward lean Adjuster

Fine-tune your forward lean angle with a #3 screwdriver to match changing terrain and riding styles.

Specifications

Binding Details

Technology
Baseplate
S11 Duraflex ST
360 degree board flex and feel. The ultimate freestyle riding experience. Lifetime warranty.
Bushing
Moleculer Bushing w/ TPE Outsole
Cushioning + rebound. Zero bushing gluing required.
Heelcup
Extruded 3D Aluminum
Designed for optimum heel hold and minimization of drag.
Highback
NEW S25 Ultra Duraflex ST
6 degrees of preloaded forward lean hugs your boot and allows for quick edge to edge response. Now avilable with forward lean adjustment.
Ankle Strap
Hybrid 1.0 w/ PU Core
Exoframe exterior with the padded comfort and flexibility of the Forma interior.
Toe Strap
TS 5.0 UltraGrip
Multi-Positional options, thermoplastic anti-slip material and fits to any boot.
Ratchet
Magnesium S1 w/ Steel Base
Union's newest ratchet - Longer life span and better spring return guaranteed.
FLAD
NEW Integrated 2-Stage
Fine-tune your forward lean angle with a #3 screwdriver to match changing terrain and riding styles.
Hardware
Grade 8.8 Steel
The strongest steel available on the market.
Footbed
Non Stick + Extragrip
Prevents snow and ice build up under boots. ExtraGrip under the big toe for increased traction.
Strap Adjustment
Pins + Quick-Lock
No tools needed for adjustment. Simply pop the pins and adjust.
Canting
No
0º
Suggested Board to Binding Flex

Boards and bindings come in a variety of stiffnesses for different types of riding. Every rider 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

Ultra Mini Disk

disk bindings

4x2

disk bindings

Channel

Product Video

HP Jet Fusion 3D Printing

Technological Innovations

HP Jet Fusion 3D Printing
Our in-house Multi-Jet Fusion technology allows for fast, rideable prototyping and even short-run production bindings. Design, Test, Ride, Repeat.

Click to Learn More
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MEN’S/UNISEX - - - SMALL MEDIUM LARGE X-LARGE
US Men - - - 5.5 - 7.5 8 - 10 10.5 - 13 13 - 15
US Women - - - 6.5 - 8.5 9 - 11 - -
US Kids - - - 5.5K+ - - -
UK - - - 4.5 - 6.5 7 - 9 9.5 - 12 12 - 14
EURO - - - 37 - 40.5 41 - 43 43.5 - 46 46 - 48
MONDO - - - 23.5 - 25.5 26 - 28 28.5 - 31 31 - 33
WOMEN’S - - SMALL MEDIUM LARGE - -
US Men - - * - 5.5 5.5 - 7.5 8 - 10 - -
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 - -
EURO - - 34 - 37 37 - 40.5 41 - 43 - -
MONDO - - 21 - 23.5 23.5 - 25.5 26 - 28 - -
KIDS ONE MINI SMALL MEDIUM - - -
US Men - - * - 5.5 5.5 - 7.5 - - -
US Women - * - 4 4 - 6.5 6.5 - 8.5 - - -
US Kids 7C - 11C 11C - 3K 3K - 5.5K 5.5K+ - - -
UK 6 - 10 10K - 2 2 - 4.5 4.5 - 6.5 - - -
EURO 24 - 28 28 - 34 34 - 37 37 - 40.5 - - -
MONDO 13.5 - 17.5 17.5 - 21 21 - 23.5 23.5 - 25.5 - - -
CROSSOVER SIZING
MEN'S
 - - - SMALL MEDIUM LARGE X-LARGE
US Men's Boot Size - - - 6 - 8 8.5 - 10.5 11 - 13 14 - 15
UK Boot Size - - - 5 - 7 7.5 - 9.5 10 - 12 13 - 14
CM Boot Size - - - 24 - 26 26.5 - 28.5 29 - 31 32 - 33
EU Boot Size - - - 38 - 41 41.5 - 43.5 44 - 46 47 - 48
Mondo Boot Size - - - 240 - 260 265 - 285 290 - 310 320 - 330
WOMEN'S
 - - - SMALL MEDIUM LARGE -
US Women's Boot Size - - - 5 - 6 6.5 - 8.5 9 - 11 -
UK Boot Size - - - 3 - 4 4.5 - 6.5 7 - 9 -
CM Boot Size - - - 22 - 23 23.5 - 25.5 26 - 28 -
EU Boot Size - - - 35 - 36.5 37 - 40.5 41 - 43 -
Mondo Boot Size - - - 220 - 230 235 - 255 260 - 280 -

STEP ON® bindings are ONLY compatible with STEP ON® boots. Do not use either product with non-STEP ON® boots or non-STEP ON® bindings. Consult the size chart to ensure that you have the correct size binding for your boot size. Pairing incompatible size boots with bindings may lead to malfunction and could compromise your safety. Women’s and Men’s sizing are based on different size standards. Combining men’s and women’s STEP ON® products will result in malfunction and could compromise your safety.

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BINDING FINDER
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01. General Info:

Select
Men
Women
Kids
Find My Size | Based on 's Size Chart arrow icon union
Select
US
EURO
UK
MONDO
Select
*-5.5
5.5-7.5
8-10
10.5-13
13-15
2-4.5
4.5-6.5
7-9
9.5-12
12-14
34-37
37-40.5
41-43
43.5-46
46-48
21-23.5
23.5-25.5
26-28
28.5-31
31-33
4-6.5
6.5-8.5
9-11
2-4.5
4.5-6.5
7-9
34-37
37-40.5
41-43
21-23.5
23.5-25.5
26-28
7C-11C
11C-3K
3K-5.5K
5.5K+
6-10
10K-2
2-4.5
4.5-6.5
24-28
28-34
34-37
37-40.5
13.5-17.5
17.5-21
21-23.5
23.5-25.5
YOUR SIZE IS: One Mini XS S M L XL

02. Riding Ability:

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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:

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UNION BINDING CO. 2026/27
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Free Gift With
Any Binding Purchase

Gift pack includes a limited-edition Mizu x Union M8 water bottle, custom Union ice scraper, Union multi-tool, and Union Force air freshener.
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*Offer valid while supplies last. Cannot be combined with other promotions, discounts, or incentive programs. Terms and conditions subject to change without notice.

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