The Darn Tough Style 1956 Women’s Mountaineering OTC Extra Cushion Sock is a tall, dense merino wool sock knit with maximum cushion throughout the foot and leg. Over-the-calf height protects against mountaineering boot bite, and the extra cushion build absorbs impact from heavy loads across long days carrying gear. True Seamless toe construction removes the typical toe seam.
The Midnight colorway a deep blue-black that reads neutral across most outfits. The 80% merino wool / 19% nylon / 1% Lycra blend is the heaviest wool build Darn Tough makes — maximum insulation for cold peaks, maximum sweat buffering for long ascents, and enough density to resist pack strap and crampon pressure without losing shape.
Darn Tough is family-owned and knits every pair at their mill in Northfield, Vermont. The mountaineering line carries the same unconditional lifetime guarantee as the rest of the line.
