This sock is designed for warmth without the weight. It is the ultimate winter boot sock. This sock is made with 25% Thermolite polyester fabric and 25% cotton in the foot bed for exceptional warmth and unbeatable breathability. Thermolite is known for its light feel, yet heavy-duty performance due to hollow-core fibers that trap in air for greater insulation. Added Opti-Dry Technology wicks moisture from your skin so your feet stay comfortable all day long.
Sizes: Medium fits men's boot sizes 5 to 8.5 and women's boot sizes 6 to 10
Large fits men's boot sizes 9 to 12 and women's boot sizes 10.5 to 13
Features: * Ultra Thin Calf
* Ankle Shield padded ankle protection for boot pinch points
* Heel to toe padded protection
* Mesh for added breathability