Mary Fields is an absolute legend. Known as "Stagecoach Mary" she was the first African American woman to work for the U.S. Postal Service - serving in the Montana Rockies, no less. We like to imagine these midweight, full cushion, over-the-calf socks would have worked great when the snow got too deep and Mary switched from stagecoach to snowshoes. Full length terry loop cushion makes them plenty warm and a midweight knit means they're up for a trek through the snow. Merino Wool moisture wicking helps, too.