HotWool Socks are our thickest and warmest wool socks, made for extreme temperatures and demanding outdoor activities. With as much as 70% merino wool, these socks provide maximum insulation, warmth and comfort, perfect for those whose feet get cold easily. The socks are knitted with wool terry on the inside, where the soft loops lie against the skin for extra warmth and insulation. The rib-knit construction at the top of the calf ensures that the socks stay firmly in place, while minimal seams over the toes prevent chafing and provide increased comfort. Aclima HotWool Socks are the perfect choice for those who need extra warm, breathable and durable wool socks, ideal for hunting, expeditions, hiking and working outdoors in cold climates.