All socks are not created equal. These U.S. Military Surplus X-Static Cushion Sole Socks are 3 steps ahead of most socks you'll find in a retail store. For starters, the fabric blend is carefully curated for long-wearing durability, comfort, moisture management and odor control. Strategically placed padding helps prevent blisters and minimize abrasion. Plus, spandex helps keep them from slouching. It all works together to provide performance the U.S. Army relies upon year-round to keep America's soldiers comfortable and highly motivated. 82/10/5.5/2.5 cotton/nylon/spandex/silver-plated nylon Specially engineered X-Static fibers help fight odor and bacteria Lightly padded cushion sole provides extra support Padding in heel, ball and toe provides protection against blisters, impact and abrasion Medium weight Note: Sizing is marked incorrectly by manufacturer, every pair has been resized correctly by The Sportsman's GuideSizing Info: Large fits Men's shoe sizes 9-12 XL fits Men's shoes sizes 12-15