Truly Reactive Dampening:

A BINDING IS THE SUM OF IT’S PARTS

Engineered To Perform

S11 ASYM Duraflex ST Baseplate

By removing excess material in the toe and heel of the baseplate, and utilizing a brand new asymmetrical shape, we've been able to drastically increase the torsional flex of the binding.

S15 Ultra Duraflex ST Highback

A thin layer of molecular bushing provides increased flexibility and a spring loaded return for quick edge to edge power when you need it.

Forma X Ankle Straps

Instant response meets all day long foot comfort. The Forma X ankle strap's all-new construction combines our responsive Exoframe exterior with the padded comfort and flexibility of the Forma interior.

Molecular Bushing

Union's all-new 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.

TPE Outsole

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

Astro Ankle Washer

Union's Astro ankle washer adds another level of confidence and securi- ty to your riding. Prevents heelcup slippage on binding models that only feature a single heelcup screw.

Select Your Riding Style

All-Mountain Freestyle

Powder

Park

Union Bindings - Ultra

Ultra Men’s

Ultra Women’s

Union Bindings - Ultra

Ultra Men’s

Union Bindings - Ultra

Ultra Women’s

01. General Info:

GENDER:

Select

Men

Women

Kids

BOOT SIZE:

Find My Size | Based on 's Size Chart

Select

EURO

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:

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

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

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+

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	-	-

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+

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	-	-	-

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+

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

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

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	-

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

Your Location

Europe

North America

Asia

Australia / New Zealand

Truly Reactive Dampening:

A BINDING IS THE SUM OF IT’S PARTS

Engineered To Perform

S11 ASYM Duraflex ST Baseplate

S15 Ultra Duraflex ST Highback

Forma X Ankle Straps

Molecular Bushing

TPE Outsole

Astro Ankle Washer

Select Your Riding Style

All-Mountain Freestyle

Powder

Park

Union Bindings - Ultra

Ultra Men’s

Ultra Women’s

Union Bindings - Ultra

Ultra Men’s

Ultra Women’s

"This is the binding that keeps me riding playful on the mountain"

-Gigi Rüf

BINDING FINDER

01. General Info:

02. Riding Ability:

03. Riding Style:

04. Our Recommendation:

US MEN'S	6	6.5	7	7.5	8	8.5	9	9.5	10	10.5	11	11.5	12	12.5
US WOMEN'S	7	7.5	8	8.5	9	9.5	10	10.5	11	11.5	12	12.5	13	13.5
UK	5	5.5	6	6.5	7	7.5	8	8.5	9	9.5	10	10.5	11	11.5
EU	38	39	40	40.5	41	41.5	42	42.5	43	43.5	44	44.5	45	45.5
MONDO POINT	240	245	250	255	260	265	270	275	280	285	290	295	300	305

Your Location

Europe

North America

Asia

Australia / New Zealand

Truly Reactive Dampening:

A BINDING IS THE SUM OF IT’S PARTS

Engineered To Perform

S11 ASYM Duraflex ST Baseplate

S15 Ultra Duraflex ST Highback

Forma X Ankle Straps

Molecular Bushing

TPE Outsole

Astro Ankle Washer

Select Your Riding Style

All-Mountain Freestyle

Powder

Park

Union Bindings - Ultra

Ultra Men’s

Ultra Women’s

Union Bindings - Ultra

Ultra Men’s

Ultra Women’s

"This is the binding that keeps me riding playful on the mountain"-Gigi Rüf

BINDING FINDER

01. General Info:

02. Riding Ability:

03. Riding Style:

04. Our Recommendation:

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.

"This is the binding that keeps me riding playful on the mountain"

-Gigi Rüf

Free Gift With
Any Binding Purchase