The 509 Stoke Sock pushes the pedal to the metal on performance to keep your feet warm and dry all day. Slide these socks into your boots and you’ll immediately feel the difference thanks to a high cuff that stays up and full terry cushioning that wraps you in the naturally fast-drying, breathable, and stink-fighting performance of Merino wool. Nylon and LYCRA® zones further enhance strength and support.