I just ran a half-marathon out on the trails behind my house in my first pair of Injinji's…I think they're great, probably going to become my go-to distance running sock.
Usually on runs of 10+ miles I get hot spots/mild blisters between some toes, but not with these.
I'd definitely recommend them so far- I'm anxious to see how they feel doing 20+ mile days backpacking.
Any other users?
Oh, here's their site for those that haven't seen them:
http://www.injinji.com/

