A technically designed sock, made asymmetrically to ensure the ideal fit for both left and right feet with supportive grip and reinforced Achilles areas. Created with a combined yarn which makes them lightweight, breathable and, importantly, warm, these are ideal for boots short or long, wherever your winter takes you. Lightweight Socks, constructed of 38% polyamide, 20% PrimaLoft®, 20% merino wool, 19% polypropylene, 3% elastane. Asymmetrical fit socks, knitted to fit specifically the left or right foot. Reinforced Achilles in strong polypropylene. Elastic grip section for fit and support, In turned cuff, Machine washable.