Perfect for long cold-weather walks, the 1000 Mile Ultimate heavyweight mens walking socks ensure blister-free performance & reduced friction on the skin thanks to a double layer system & feature a soft wool-mix outer layer to keep you warm & provide extra durability & insulation. These comfortable & breathable socks are quick drying & hold the feet in place due to arch support, plus they have special Tactel® inner layer that wicks sweat & moisture away for a fresh & cool feel. The socks are suitable for 3 & 4 season walking & can be washed at 40°C.