The Assos Winter Trail Socks are tall, durable, and warm, giving you everything you need to stay on your mountain bike through the coldest months of the year. With a height of 24cm and a thicker makeup than ever before, keeping your lower legs safe from debris on the trail. A special wool blend also makes them incredibly insulated to remain comfortable in the coldest weather. Despite their high level of insulation, the Winter Trail Socks are very breathable, keeping sweat and moisture away from the feet as you put in hard work. The Assos Winter Trail Socks have all your bases covered including warmth, protection, breathability, and flexibility.