are there any americano people who can lend me a hand

i wanna buy some boots over the internet

and in a conversion table, i'm american size 10.

however on the little drop down menu, to chose shoe size, there's one option which sais "10 D" and one lower down which sais "10 EE"

is that widths or something? cos i don't know which one to click

"D" and "EE" have to do with the width or girth of the shoe.

D is two sizes narrower then EE, which means EE is about half an inch wider then D. (The scale is AAAA, AAA, AA, A, B, C, D, E, EE, EEE, EEEE)

it looks like D is in the middle, so i think i'll pick that

Thanks allot