This high-tech low-cut features a resilient wool/acrylic blend that transports moisture, naturally combats odor and retains its shape and bounce wash after wash. Mesh cooling panels, plus instep channels, promote air flow and a braced Arch support adds stability. Heel tab design shields the Achilles from abrasion and keeps the sock from slipping into the shoe. Reinforced for durability, this sock delivers ultimate all-terrain performance. Made in the USA