After you wear socks like this for your activities— mine are biking and walking— you simply cannot go back to wearing cotton, or full nylon socks. These socks help regulate temperature, they offer great support for MUCH longer than the aforementioned socks, and they look damn good. They also don't have to be washed after every use, so they are great for camping; you can literally just get them wet, squeeze the water out and let them hang to dry. Try one pair and you'll see.
37.5 Finish Line Extra Light Mini
These socks are so comfortable even as thin as they are. Great fit and perfect for most of my shoes. My only suggestion is more colors to choose from.
High quality. Heavy duty. No frills.
Wicks, stays in place and washes well.