Gear up for duty in Darn Tough T3005 Tactical Mid-calf Light Cushion Socks. The wool blend is naturally antimicrobial, sweat-wicking, and fast-drying. Plus, they come in a performance fit with True Seamless undetectable seam for smooth, stay-put wear. And a combination of lightweight cushioning and breathable mesh panels makes these Tactical Socks ideal for comfort during duty in warm conditions. 56/41/3 nylon/merino wool/LYCRA spandex for all-season performance Moisture-wicking and fast-drying Naturally antimicrobial to repel bacteria and odor True Seamless undetectable seam fusiona |you simply won't feel it Mesh panels at top of foot and leg for added breathability Fine-gauge knitting for durability without excess bulk Light underfoot cushioning Elastic arch support Reinforced toe Extended mid-calf height ideal for coverage under taller tactical boots Performance fit won't slip or bunchSizing Details Extra-small: Fits Women's shoe sizes 4.5-7 Small: Fits Men's shoe sizes 5.5-7.5, Women's 7.5-9.5 Medium: Fits Men's shoe sizes 8-9.5, Women's 10-11.5 Large: Fits Men's shoe sizes 10-12, Women's 12-14 XL: Fits Men's shoe sizes 12.5-14.5 2XL: Fits Men's shoe sizes 15-17