HOW TO MEASURE YOUR SIZE: Measure STRAIGHT from the first point of your biggest toe to the last point of your heel (for example: 26cm). After that, add 1,5cm (26 + 1,5 = 27,5cm). So, the right size for your order is 27,5cm. That means: Women US 9 / UK 7,5 / EU 41 / CM 27,5. MEN US 8,5 / UK 7,5 / EU 41 / CM 27,5. Sizes and colors will be requested in a survey sent after the campaign.