At Arvada Army Navy Surplus, we stock base layers, thermals, and long underwear from trusted brands like Coldpruf, Rothco, and Indera Mills. These thermal base layers help to keep you shielded from the chill of the storm. Polyester, fleece, and merino wool long underwear blends are great for colder wetter conditions without compromising mobility or backpack weight capacity. We carry tops, bottoms, and one-piece options to meet your needs and preferences. Comfort during a day of ski lifts or forklifts starts with these basic, but high-quality core layers of warmth.