Cotton is cooler, so it’s best for summer months and of course, wool will keep you warm in winter. They are lighter and finer and just feel fantastic.
If you have a black tie function coming up, do try some dark silk dress socks. There are some truly exquisite socks still available today. They keep my socks perfectly in place, and the look of an unwrinkled sock is always better - especially as shorter length socks can occasionally slip down and bunch up at the heel.
I believe that socks offer men a chance to really experiment with color and be a little braver in their personal style choices. Today, I like to have fun with my hosiery like the men of yesterday seemed to do. 1967 Sport Socks and Dress Socks Socks Today