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OS1st Size Chart
Please use your shoe size to find the perfect OS1st fit for you!
| Sock Size |
Men |
Women |
Euro |
Ankle Circumference |
| Small |
3-5.5 |
4-6.5 |
33-36 |
5-8" |
| Medium |
6-9.5 |
7-10.5 |
37-41 |
7-10" |
| Large |
10-13 |
11+ |
42-46 |
9-13" |
| X-Large |
13.5-15 |
|
47-50 |
11-15" |
| XX-Large |
15.5+ |
|
51+ |
13-18" |
OS1st Calf Sleeve Sizing
| Sock Size |
Men |
Women |
Euro |
Ankle Circumference |
Calf Circumference |
| Small |
3-5.5 |
4-6.5 |
33-36 |
6.5-8.5" |
9.5-14.5" |
| Medium |
6-9.5 |
7-10.5 |
37-41 |
8.5-10.5" |
12-17" |
| Large |
10-13 |
11+ |
42-46 |
9.5-12.5" |
14-19" |
| X-Large |
13.5-15 |
|
47-50 |
12-14" |
14.5-20" |
OS1st HV3 and TT3 Sizing
| Sock Size |
Men |
Women |
UK |
Euro |
| Small/Medium |
3-7 |
4-8 |
2-8 |
35-39 |
| Large/X-Large |
8-14 |
9+ |
8-13 |
39-47 |
OS1st W6 Sizing
| Size |
Wrist Circumference |
| Small |
5.5-6" |
| Medium |
6-7" |
| Large |
7-8" |
| X-Large |
8"+ |
