Year Round OTC (Over the Calf) socks are crafted from TransDRY® Cotton and copper threads for superior breathability, moisture management and anti-microbial performance. Designed to complement all 5.11 Tactical® footwear, these comfortable and durable over the calf socks for men feature NanoGLIDE® technology for enhanced blister protection, enhanced arch and ankle support to increase traction and agility, and reinforcements at the heel, sole, and toe to maximize cushioning and extend garment life.