The boots are unisex Alt-berg don't differentiate with the motorcycle boots.
There is not any width marking on them although I've always found they fit with time as the leather breaks in -
The Alt-Berg website suggests the following for their boots which might be helpful -
"Medium/wide feet - go up 1/2 size on your SHOE size (to allow for thicker socks with boots). Narrow feet - stick with your SHOE size."