Sized in European, we find this style to fits ALMOST true to size in the length. Due to the thick lining, it can be a bit snug for you ladies who wear socks and/or have wider feet, and/or just like extra wiggle room in the toes. You should order a EURO size larger if any of these things describe your needs. Personally, I could wear either the 41 (my regular size) and the 42 (size larger) I would likely choose the size larger just for that extra wiggle room. As for width, we find them to be best for an average to above-average width foot.
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Please note that this is not an industrial boot, nor is it a super-duty hiking boot. It is best suited for everyday winter wear and is not what you want to hike snowy mountains or work around grease, oil, or solvents in.