A lightweight work sock, designed to fit best with rubber boots, was on Darn Toughs list for several seasons but it wasnt until they started working with Alaskas Salmon Sisters, their family, and crews, that they had a stacked deck to work with. Pulling long stretches on their commercial fishing boats, the cushion underfoot gave welcome relief, while mesh windows on the foot and leg helped everything breathe. The Stanley K Mid-Calf features a full-cushion toe box for the steel-toe wearer, and our durable, performance fit eliminates the soul-crushing sock slip in a tall boot. Darn Tough couldnt ask for better testing, they said they couldnt ask for a better sock made in the USA.