There always seems to be a thread or two pop-up once in a while about socks. Most recommend Gold Toe or some British brand that costs an arm and a leg. I have worn Gold Toe for a long time, but the quality is not what it used to be. I also cannot justify paying $30+ for a pair of socks. I purchased some Viccel socks about four months ago after reading several positive reviews on here, Style Forum, and Ask Andy About Clothes.
The socks are 100% cotton. The cotton is mercerized, which allows it to stretch like nylon. What I think really separates these socks from others is that they allow your feet to breath. My feet feel better and smell less (if at all). The socks have held up to multiple washes.
You can order the socks in OTC, mid-calf, and in three weights: winter, summer, and super fine. I ordered summer weight initially, but placed my next order for winter weight because I could see my skin through the summer weight socks. The mid-calf socks, like 99% of other mid-calf socks, do fall down somewhat, but unlike other brands, not to the point where if you cross your legs your skin can be seen. An OTC pair would solve this.
Viccel is owned by a Turkish family. Their English is perfect, they are always friendly, and they respond to e-mails promptly. They offer free worldwide shipping from Turkey, regardless of how many socks you order. Give them a try.