New this year, the Darn Tough Women's Over The Calf Function 5 Padded Cushion Ski Sock takes the company's lauded Over The Calf Ultra Light sock and adds cushioning at five strategic spots to seamlessly integrate sock with ski boot. The sock is literally seamless so it sits as one smooth surface on your foot, keeping chafing and blisters away. Breathable and anti microbial soft merino wool cushions your foot while moving sweat away. Nylon fibers improve durability and Lycra adds stretch so the sock conforms to your foot. Additional cushioning is placed at ski boot pressure points, at the Achilles and ankle, for added protection and support.