The Midcalf Thermax Liner Sock is made of 70% Thermax® Polyester and 30% stretch nylon to keep the heat & remove moisture without added weight & bulk. Thermolite®’s hollow core fibers heat up quickly to hold in heat. Excellent moisture wicking efficiency. Per two pair. Made in USA. Ht: 11". Sizes: M (5 to 8-1/2), L (9-12), XL (13-15). Color: Grey.
Approved for Cabela’s waterproof, breathable footwear.