Take no risks when you have to be outside in the cold. This 2-Layer cotton and wool thermal is built to keep you comfortable and warm in the frigid temperatures. Model: 92A Color: Vintage Navy Two layer engineering Traps air between layers providing a natural barrier of warmth More merino wool for extra warmth Inside: 100% combed ringspun cotton Outside: 50% combed ringspun cotton, 40% merino wool, 10% nylon Heavyweight Base-layer – Great for the Coldest Temperatures and mild to low activity. Tagless Flat seams Extended tail Rib cuffs True sizing for accurate fit NOTE: Thermal Underwear cannot be returned once the package is opened, so please use the size guide to help find the right size for you.