Sioux Size Chart
Sioux has made shoes since 1954 and sells women's and men's shoes through its own shop. Checked against Sioux's own pages on 2026-11-01.
Sioux official size charts
| US Men | US Women | UK | EU | CM |
|---|---|---|---|---|
| 4 1/2 | 3 | 35 | 22.2 | |
| 5 | 3 1/2 | 36 | 22.6 | |
| 5 1/2 | 4 | 37 | 23.1 | |
| 6 | 4 1/2 | 37 1/2 | 23.5 | |
| 6 1/2 | 5 | 38 | 23.9 | |
| 6 1/2 | 7 | 5 1/2 | 39 | 24.3 |
| 7 | 7 1/2 | 6 | 39 1/2 | 24.8 |
| 7 1/2 | 8 | 6 1/2 | 40 | 25.2 |
| 8 | 8 1/2 | 7 | 41 | 25.6 |
| 8 1/2 | 9 | 7 1/2 | 41 1/2 | 26.0 |
| 9 | 9 1/2 | 8 | 42 | 26.5 |
| 9 1/2 | 10 | 8 1/2 | 42 1/2 | 26.9 |
| 10 | 10 1/2 | 9 | 43 | 27.3 |
| 10 1/2 | 11 | 9 1/2 | 44 | 27.7 |
| 11 | 11 1/2 | 10 | 44 1/2 | 28.1 |
| 11 1/2 | 12 | 10 1/2 | 45 | 28.6 |
| 12 | 11 | 46 | 29.0 | |
| 12 1/2 | 11 1/2 | 46 1/2 | 29.4 | |
| 13 | 12 | 47 | 29.8 | |
| 13 1/2 | 12 1/2 | 48 | 30.2 | |
| 14 | 13 | 48 1/2 | 30.6 | |
| 14 1/2 | 13 1/2 | 49 | 31.0 | |
| 15 | 14 | 49 1/2 | 31.4 | |
| 15 1/2 | 14 1/2 | 50 | 31.8 | |
| 16 | 15 | 50 1/2 | 32.2 |
Sioux labels the UK column as its own Sioux size.
Source: www.sioux.de/pages/schuhgrossentabelle
Key facts
- Sioux's official men's chart: US 9 = US Women 9 1/2 · UK 8 · EU 42 · CM 26.5.
- Sioux's official women's chart: US 8 = US Men 7 1/2 · UK 6 1/2 · EU 40 · CM 25.2.
- Sioux's chart lists US men's 9 at 26.5 cm, within 2 mm of the median of 16 other brands whose charts also list a measured foot length (26.4 cm). On paper it is sized like most of them.
- Width options listed by Sioux: F, G, H, J, K.
- Source: Sioux's official size guide, checked on 2026-11-01.
Sioux widths
| Code | Meaning |
|---|---|
| F | Slim (women) |
| G | Normal width |
| H | Extra wide XL |
| J | Super wide XXL (men) |
| K | Extra super wide XXXL (men) |
Source: www.sioux.de
How Sioux compares with other brands
Sioux's chart lists US men's 9 at 26.5 cm, within 2 mm of the median of 16 other brands whose charts also list a measured foot length (26.4 cm). On paper it is sized like most of them.
Convert your Sioux size to another brand
Questions
Which length does Sioux's size chart list?
Sioux's charts give these lengths — CM: measured foot length. A measured foot length and a size in cm are about 8 mm apart for the same size, so compare your own foot length only with a column on the same scale.
Does the official chart tell me how a Sioux shoe will fit?
Only in part. The chart gives the length each size is meant for; how a particular model fits also depends on its last, width and materials, which the chart does not show. Sioux's size guide does not give general advice on sizing up or down; fit also varies by model and foot shape.
When should I not compare Sioux sizes with another brand?
When the two charts list different lengths. A measured foot length and a size in cm are about 8 mm apart, and the length of a foot is not the inside length of a shoe, so such a match can be half a size or more off. The converter matches only lengths on the same scale and lists the other brands separately.
When was Sioux's chart last checked?
On 2026-11-01, against Sioux's official size guide linked under each chart. The date changes only when the chart is checked again against the official page or its numbers change, not when this page's layout or wording changes.
Cite or reuse this data
Suggested citation: Sizelane, “Sioux Size Chart”, https://sizelane.com/sioux-size-chart (checked 2026-11-01).
The data is free to reuse under CC BY 4.0: name Sizelane, link to this page and keep the link to Sioux's official source. Licence and update policy
Sioux men's to women's sizes
Sioux's chart lists women's sizes as men's +0.5: a men's 9 is a women's 9.5. Compare with other brands.