Perfect for all terrains, this sock will help you go the distance! Outfitted for the utmost comfort, the Work-Dry All-Terrain Crew Sock is equipped with Graduated Compression technology to make sure your legs and feet stay completely energized throughout the day. Mesh cooling panels plus instep channels promote airflow and hold the sock securely to your feet. Friction Free fabric in the heel and toe reduces the chance of blisters. Braced arch support adds stability. Resilient wool/acrylic blend transports moisture, naturally combats odors, and retains its shape and bounce, even after repeated washings. Made of 48% acrylic, 24% nylon, 16% Merino wool, 11% polyester, 1% Lycra spandex fabric. Made in the USA.