sth2678090 wrote a review of Montrail FluidFlex Trail Running Shoe - Men's on September 22, 2013
Familiarity: I've used it several times
Fit: True to size
These shoes are super light, the fit is good and they have great traction. I didn't care for the foam though(a little squishy) and the back of the heel cup is too high for me(afraid it will lead to chaffing).
If you want lightweight without sacrificing cushion, this would probably be a good choice.