I never thought I'd like wool socks, until I wore these. Unlike coarser grades, this wool has a soft, cushiony feel and doesn't itch. The wool fibers draw moisture away from the feet to keep them dry and comfortable in any weather. Martha Swath won last year's Leadville Trail 100 in Smart Wool Ultra Thins. And most runners' shoes are too tight for Thorlos, but you've got to try them to see how good they feel.
Special fibers help prevent blisters by keeping feet dry.
Once you run in Thorlos, you may never want to take them off. As the official sock of the Ironman Triathlon, the Ultimax can go the distance. It's made from a blend of fibers that pull moisture up from the bottom of the sock to the top, where it can evaporate. This advanced wicking action allows the foot to stay dry and eliminates the chafing, burning and blistering that moisture and friction can cause. This article originally appeared in the May 1997 issue of Runner's World.