Barb M.wrote a review of Arc'teryx Psiphon SV Softshell Pant - Women's on March 23, 2015
Familiarity: I've used it several times
Fit: Runs small
I take size 4/6 (5'7", 140 lbs) and the size 6 in these pants left zero room for even a light base layer underneath. Size up, then they're great!