Few things will send you home early from your favorite outdoor adventure more quickly than wet, cold feet. Fact it, if your toes are cold, your whole body feels cold. Thick socks, however, can ensure that your feet are warm and dry, no matter the weather. But with a variety of materials, heights and other factors involved, all aren’t created equal. To make a good selection when shopping for thick socks, consider three important factors—the material they are made from, the activity you will be undertaking and the fit/height of socks that you need.