From hiking to farm work, these women's boot socks are made for winter-weather warmth. Heavy-duty merino wool blend fabric wicks sweat and fights odor. Reinforcement at the heel and toe makes them extra tough. 66% wool / 28% nylon / 7% acrylic / 1% elastane. FastDry(R) wicks away sweat. Fights odor. Temperature-regulating wool blend. Heel, arch, toe, instep and leg cushioning. Abrasion-resistant yarns in heel and toe. Stretch top stays put and reduces tension.