The Darn Tough Style T4050 Tactical OTC Extra Cushion Sock is an over-the-calf merino wool sock knit with maximum cushion density throughout the foot. The OTC height is designed for jump boots, duty boots, and tactical boots that rise above the ankle — the sock protects the entire lower leg from boot-top bite and brush. True Seamless toe fusion removes the toe seam.
The Black colorway the universal pick — disappears under any boot or pant. The 80% merino wool / 19% nylon / 1% Lycra blend is the heaviest wool build in Darn Tough’s tactical line — maximum thermal regulation, maximum sweat buffering, maximum durability across repeated duty wear. This is the sock for cold-climate deployments, winter training, and any job where the boot stays on for twelve hours at a time.
Darn Tough is family-owned and knits every pair at their mill in Northfield, Vermont. The lifetime guarantee is unconditional — if the sock fails, it gets replaced.
