Been a fan of Sockguy socks for a few years now. They hold up well, have cool/plenty of designs to choose from and are made in the USA. My shoe size is 10.5-11 depending on company so I go with the large/XL sock, fit is spot on. What more could you ask for.
Who doesn't love mountain goat socks, I mean really? THese are super cute and comfortable. I use them for both hiking and mountain biking. They are a bit shorter so don't protect your shins as much from pedals, but still great.