Please refer to your shoes in EU sizing.
Regular/wide fit to cater to most feet.
Example, if you are a size 11US Mens in nike please purchase size 45.
If you are a 10.5US please also purchase 45.
If you have skinny feet please consider going 1 size down, especially if you're .5'ing.
IE if you're size 42.5 with a skinny foot please consider choosing 42 over 43.