You should measure your actual foot length from toe to heel, then compare with our shoes length on the chart below. Please allow at least 3mm extra space. For example, if you are female and  your actual foot length is 26.1cm, then you should order our size 42 which has a sole length of 26.5cm. Or if your actual foot is 24.7cm, then you should order our size 39 where the sole length is 25cm.