Darn Tough | Men's Function X Over-the-Calf Midweight Ski & Snowboard Socks tool kit works or plays on the

works or plays on the fringe of mobile coverage – use it to enjoy coverage everywhere

5-year warranty

making it wider and less susceptible to lifting and causing drafts while you toss and turn at night

Factory-sealed fly and floor seams provide best weather protection

and water crossings

Darn Tough | Men's Function X Over-the-Calf Midweight Ski & Snowboard Socks tool kit works or plays on theDarn Tough Men's Function X Over the Calf Midweight Ski & Snowboard Socks One of Darn Tough's most tech savy snow socks, the new Function X was re engineered to provide max comfort and warmth for resort skiers and riders. Made from midweight merino wool, these ultra smooth socks make all the difference if you decide to head back out after lunch. Terry cushioning in the shin and the 'X' on top of the foot provides warmth while added heel durability