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Union Size Guide

Find the right fit for your setup. Select Strap Bindings, Step On® Bindings, or Snowboard Boots below to view the appropriate size chart. For the best possible fit, we recommend visiting your local Union dealer.

Select your Boot Size:

Select
Men
Women
Kids
Men
Women
Select
US
EURO
UK
MONDO
Select
*-5.5
5.5-7.5
8-10
10.5-13
13-15
21-23.5
23.5-25.5
26-28
28.5-31
31-33
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
4-6.5
6.5-8.5
9-11
21-23.5
23.5-25.5
26-28
2-4.5
4.5-6.5
7-9
34-37
37-40.5
41-43
11C-3K
3K-5.5K
5.5K+
17.5-21
21-23.5
23.5-25.5
10K-2
2-4.5
4.5-6.5
28-34
34-37
37-40.5
6-8
8.5-10.5
11-13
14-15
5-7
7.5-9.5
10-12
13-14
38-41
41.5-43.5
44-46
47-48
24-26
26.5-28.5
29-31
32-33
5-6
6.5-8.5
9-11
3-4
4.5-6.5
7-9
35-36.5
37-40.5
41-43
22-23
23.5-25.5
26-28

Suggested Union Binding Sizes:

-
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.

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

Union Short-Sleeve Tee

Length (A)Chest (B)Sleeve Length (C)Shoulder (D)
S68542248
M705622.549
L72582350
XL746123.552
XXL76642453
Length (A)Chest (B)Sleeve Length (C)Shoulder (D)
S26.821.38.718.9
M27.622.08.919.3
L28.322.89.119.7
XL29.124.09.320.5
XXL29.925.29.420.9
Union Short-Sleeve Tee measurements
Length (A)Chest (B)Sleeve Length (C)Shoulder (D)
S68546648
M70566749
L72586850
XL74616952
XXL76647053
Length (A)Chest (B)Sleeve Length (C)Shoulder (D)
S26.821.326.018.9
M27.622.026.419.3
L28.322.826.819.7
XL29.124.027.220.5
XXL29.925.227.620.9
Union Long-Sleeve Tee measurements
Length (A)Chest (B)Sleeve Length (C)Shoulder (D)
S68586948
M70607049
L72627150
XL74657252
XXL76687353
Length (A)Chest (B)Sleeve Length (C)Shoulder (D)
S26.822.827.218.9
M27.623.627.619.3
L28.324.428.019.7
XL29.125.628.320.5
XXL29.926.828.720.9
Union Hoodie / Crewneck measurements
Care instructions

Machine wash cold (30°). Do not bleach. Do not tumble dry. Iron at low temperature. Dry clean.

* All measurements are subject to a +/- 1cm tolerance.

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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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union bindings finderunion bindings finderINTERMEDIATE
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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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