When you need a sock that works as hard as you do the Darn Tough Tactical range offers the most comfortable the most durable and best fitting sock around that also comes with a Lifetime Guarantee This Darn Tough Tactical Boot Full Cushion Sock has full terry loop cushioning surrounding the leg and foot with elastic arch supports for a snug performance fit and has a high merino wool content to offer excellent breathability and naturally bacteria and odour repellent making these perfect for all day comfort in cooler climates These Darn Tough Socks have a high-density stitch count reinforced toes and heel for increased durability and as mentioned are covered by Darn Tough s Lifetime Guarantee making them an excellent choice of sock for both work and leisure