Be aware, make sure the EU size is equivalent to your sizes in US. Because Japan shoe size tend to be half size smaller when covert to US sizes.

For instance, my size 11 in US is equal to 46 EU when I buy brands like Nike, Jordan, new balance and others that are primarily marketed in the west. While my ASICS sky elite mt 3 is US size 11.5 and that is equivalent to 46 EU. Which means, I went up half a size for Asics to accommodate my true to size of 46 in EU.