Please note that shoe widths are in approximate measurements and are meant for reference only. 

Euro 39 40 41 42 43 44 45 46
D Width 3.62" 3.69" 3.75" 3.75" 3.94" 4" 4.12" 4.31"
E Width 3.75" 3.94" 3.94" 4" 4.12" 4.19" 4.31" 4.37"