Now if the shoes you want to buy from online are a different brand, heres what you need to do to make sure that your ordering the right size;
- take a look at the inside sole of a brand of shoes you wear a lot. On the inside you'll find size for US and also for EUR
- On the website your looking to purchase the shoes from take a look at thier shoe size chart for the shoe for EUR and then match that size in EUR to the size in EUR in your shoe. For instance your shoe may be size 44 in EUR so match it with 44 EUR on thier size chart
- Once you've done that take a look at thier corresponding US size for The EUR, For example on thiers it may say size 10.5 for US and choose size 10.5 for your shoe purchase.