Tonight I gave my Vibram FiveFingers Flow their biggest test yet. This wasn't an exceptionally long run, at around 13km, but it was the most technical. The route that we took started with 3km of easy trail, progressed up a large hill and then the last half was on hard backwoods trails.
Being New Brunswick in the spring, the terrain for the backwoods section was a mixture of mud, ice, slush, snow, and even some sharp rocks on one section. This was a true all around test of the shoes!
The temperature was around freezing and much of the trail was snow or ice covered. The Flows kept my feet very warm. Several times my feet ended up in streams and slushy puddles but my feet were never cold.
I found the shoes exceptionally good for areas where technical running was required while straddling streams, hopping across rocks or traversing fallen logs.
The only area where the shoes really don't do well is on smooth ice. Several downhill sections were icy and the shoes do not grip well at all in these conditions.
As a result of this muddy run I have to wash my VFF for the first time...but that's just a good sign that they're being used!