Each pair has its own shoe size guide as we work with different manufacturers. To view the shoe size guide, you can click the button that show "Check My Shoe Size" in the product page. 

If you have a wide foot width, consider getting the next size bigger. If you have a narrow foot width, consider getting the next size smaller. Our shoes are true to size and has a neutral width. Only barefoot shoes have wide widths which do not require you to size up.