Having bought many expensive hiking, work and running socks, I want to say straight out that Darn Tough is my favorite sock company. Their lifetime guarantee is no joke, and I sent in a pair of socks that took me to the edge of what longevity means, no questions asked. One set was old enough to be out of the catalog and was told to just pick what you want. These particular socks continue the tradition of providing "enough" cushioning without allowing excess material to accumulate. Whatever combination they use, it stays comfortable in my boots even when I run through enough water to get them wet, and they're machine washable.