Originally Posted by
greatbasin
32% nylon
Many of Smartwool's socks are only 50% or less wool.
Uhm... read the label. Of course they make different types. There is a reason manufacturers blend other materials with wool when making socks. Wool is more delicate than synthetics, so adding synthetic material will allow the sock to retain its shape better, and last longer. A blend of wool and synthetic is also easier to care for. Saying "Many of Smartwool's socks are 50% or less wool," is like saying, "Many of GM's cars are small cars," it has no real significance, other than offering a choice for differing needs.
There are reasons for different blends, and Smartwool offers many, including 74%, 77%, 66%, and many many more. I actually prefer a blend due to comfort, better longevity, they hold their shape better, and stay up better.