Vibram has a pair that's a little dressier, better suited for cold weather.

Almost acceptable at some business casual work places?  What do you think? The VFF Bormios looks like a step in the casual footwear direction for Vibram.   The soles appear to be the same as my KSO Treks.  Very good in snow/mud, etc.  I could foresee some difficulty in getting my toes in the correct slots, I use the flexibility of my KSOs to wrangle a couple of my useless mal-formed toes where they belong.  Review is here