dbm811 saidYea..xrichx has a good point, but there is some tread on the bottom of them. Im gonna go try a pair tomorrow and see how I feel about them then. BTW, I did search for fivefingers in the search and I got a screen name. Sooo, couldn't find anything.
There has been a ton of discussion about them. See here:http://www.realjock.com/gayforums/?searchtext=vibram
I have two pairs and am buying more. I've run for up to 5 hours in them on really rooty rocky difficult stuff.
They suck for fire-road running but are great for hiking up/down. They're generally crappy on too much real mud. Despite being Vibram, the compound isn't sticky in mud or soft sand.
But for mild grade or slower hike or flat out running on smoother stuff they're pretty awesome.
My default is to wear them everywhere if possible, other than business meetings. Although I'm often tempted...