10-15 Mile days. 2 weeks. 1 pair of socks.
These things hold up and made my feet really happy. I wore just one pair for 14 days of hiking (and changed into camp socks at night) with river crossings, mud, weird moss that would suck you in like quick sand, 80 degree temps down to freezing... My feet didn't have a single blister. With that being said, they aren't magical by any means. They were nasty after that amount of time in use. My expedition tent mates aptly named them "leeches".
The padding is really good, the quality of the wool is good, I would recommend these to anyone who enjoys happy feet.