Colorado in October - 10,000 - 12,000 feet. Been researching clothing here on LRH and socks get mentioned often. However, they always say something like "good wool socks". Well, a little more research and socks can vary from 15% wool to 90% wool, the other stuff being lycra, spandex, or acrylic. So, does more wool mean better? It makes sense that you need a little something else to keep shape and stretch, but how much is best?