Thorlos Mens - Womens Military Thick Padded Over-the-calf/Tube Socks | MCB THORLON fiber are specially spun to maintain both softness and resilience which assure all-day moisture wicking, comfort and blister protection. Fiber Contents: 86% Exclusive THORLON, 11% nylon, 2% spandex Key Benefit: Maximum Protection = Maximum Comfort Designed for: Designed to deliver maximum protection and comfort for those prone to blisters, foot pain, or discomfort Padding Level: Thick Cushion Comfort Feature #1: Thorlos clinically-tested padding under the ball and heel provides maximum protection from friction, the primary cause of blisters, and impact protection where needed most Comfort Feature #2: Padding clinically-tested and shown to reduce foot pain, blisters, moisture and pressures Comfort Feature #3: Constructed with THORLON fibers for superior softness, resilience, durability, and moisture-wicking for drier, better feeling feet Comfort Feature #4: Cushioning over the toes to help protect against "boot bang" on your toes (black toe)