The Perfect Fit – Shoe Size & Width

The right fit determines how comfortable a shoe feels and how it feels when walking. In addition to shoe size, shoe width, foot shape, toe room, and heel support also play an important role. At Sioux, fit is taken into account right from the last-design stage—ensuring the shoe provides a secure fit while allowing enough room for natural movement.

Shoe lasts, a measuring tape, and a drawn outline of a foot, symbolizing the process of determining and comparing the correct shoe size.
Shoe Size Chart: EU, UK & US Sizes

Compare EU, UK, and US shoe sizes, as well as the corresponding foot length, at a glance. Our shoe size chart offers a quick guide for men and women.

Sioux shoes with a measuring tape and a chart for converting foot length to EU and UK shoe sizes.
Shoe Size Conversion – EU, UK & US Sizes

EU, UK or US? Learn how to convert and compare shoe sizes – with clear shoe size charts for men and women.

MokRunner sneakers for women and men by Sioux in green and blue, worn on light-colored stone steps in a summery setting.
Comfort & Fit – Shoes that really fit

Good wearing comfort starts with the right fit. Learn how shoe width, footbed, materials and workmanship contribute to a comfortable running experience.

A person standing barefoot on a light-colored wooden floor uses a measuring tape to measure the circumference of the ball of the foot to determine shoe size.
Determine your shoe width – How to find the right width

Determine shoe width correctly: Learn how to measure your foot width and find the right width based on shoe size and width chart.

Measuring a wooden shoe last with a measuring tape to determine the shoe width.
Shoe Width Explained – Greater Comfort with the Right Width

What does shoe width mean? Learn how F, G, H and other widths differ and how to tell if a shoe fits comfortably and securely.

Barefoot on a sheet of white paper—a second person traces the outline of the foot with a pen to determine the shoe size.
Determine Shoe Size – How to Measure Correctly

How to determine your shoe size at home: Measure your foot length correctly, calculate your size, and compare it with the Sioux shoe size chart.

A foot on a black insole with a measuring tape to determine the correct shoe size.
Finding the right shoe size

Why are there different shoe sizes and when does a shoe fit correctly? Learn more about sizing systems, fit, and choosing the right shoe size.