Like all of Knox’s new Cold Killers lineup these are lined with soft and warm Velboa fleece for added comfort. The main forward-facing panels of this over-sock are made with a wind-blocking soft-shell material, and the back of the sock is made from soft stretch material for easily fitting inside your boots with a standard thin wool sock.

• Windproof
• Water resistant
• Breathable
• Machine Washable and dries quickly