Content- 36% Merino, 36% CoolMax, 24% Nylon, 4% Spandex * ProtecGuard® Anti-microbial socks inhibit the growth of bacteria & Anti-Blister protection design is proven to reduce abrasion and increase wicking * Impact Support Zones (strategically reinforced zones) for shock absorption, Double Cuff for added comfort, and Arch Support (strategically placed elastic) for superior fit * Merino & CoolMax® - The finest quality of easy care wool combined with Dupont"s unique four channel fiber (CoolMax®) for exceptional warmth, softness and a total moisture management. It has good thermodynamic properties that will keep feet cooler in summer and warmer in winter. Wool features inherent qualities such as wrinkle resistance, colorfastness, shape recovery (resiliency), and is very breathable. * Quarter Length