Part of the next generation of our winter workwear, Mountain Ops, that's built on rugged tradition and state-of-the-art innovation. These cold-weather work pants feature a tough, water-repellent cotton canvas woven with CORDURA® nylon and just enough spandex to provide two-way flex for unrestricted mobility. Inside, fleece lining adds an extra layer of warmth. Reinforced construction at stress points adds to the serious durability.