Extremely comfortable and they look like suede but they're not.  Plus they are washable!  The only downside is that the zipper slowly unzips after walking for a little while.  Despite that, soon I will be ordering a second pair in a different color.

Has anyone washed them yet?  Once I do I'll supplement this review.

UPDATE:  I washed them; no fading and looked brand new not like they'd been washed.  I'm impressed.