Hello there. Sorry, we don't use a nation standard sizing but our own instead. This is because we ship to over 200 countries and many of them have a total different sizing system. So, to choose your best size:
1. Please check the size chart on each dress or shoes page (it's specifically for that item)
2. You'll find some measurements, like chest, waist, ... Please take yours and compare it to the chart to find the correct size
3. You'll find also the European or American size on our chart, but please note this is approximative. Please do not skip the first two steps, as only measuring your body and then checking the chart is the correct way to get the perfect fitting size.