Our shoes are measured in US or European sizes. When using the below chart, convert your US, EU or UK size to the US or EU shoe size for purchase. Please Note: Shoes are constructed differently depending on the style and intended wear of shoe, therefore sizing may vary accordingly. The size conversions below are approximations based on ideal shoe size runs. Niko Alexis does not claim that this chart will be 100% accurate for all shoes, and offers it only for informational purposes.