Heather Willis wrote a review of Icebreaker BodyFit 200 Legging - Women's on October 19, 2012
Familiarity: I've used it once or twice and have initial impressions
Bought these for a shark diving trip out to the Farallon Islands. Ended up throwing them on under a pair of jeans when the wind picked up and the fog rolled in.
They kept me nice and warm and were super comfortable.
I bought the large since I'd read the reviews about the waistband being tight, and they fit me fine (I'm 5'7, 140lbs). My only slight gripe is that the waist pulls down in the back when I bend over, instead of staying put.