Darn Tough Women's Due North Over-the-Calf Midweight Ski & Snowboard SockWinters last a lot longer when you venture north. You need warmer gear, including cold weather socks. Our Due North socks are midweight with cushion to pack the heat. Breathable construction atop the foot regulates your climate for all day rideability with a healthy no slip grab. Dial in extra durability in high wear areas and our unconditional lifetime guarantee to back it up, and you'll be ready for the extra long haul. Side note: not all polar