What shoes (women)

I should clarify that I (having wide feet) buy mens Sidis and they fit splendidly. I haven't bought any womens-specific ones as yet. I have a pair of 40 Sidi winter boots and I wondered if I should have gone up a size further to allow for sockage. When I wore them earlier in the year they were so toasty that I didn't need more than a pair of sealskinz underneath (and there's always overshoes).

Ah, then this won't work for me - I have narrow feet. Pooh.