Stay warm through long, frigid sits with the Women's Core Merino 330 Bottom. Heavyweight merino wool brings soft, itch-free warmth for the coldest conditions, while a recycled synthetic lining moves any moisture away from your skin to keep you dry and warm. Merino wool also delivers more warmth with less weight and is naturally odor-resistant to minimize smell. Plus, our ArmorSpun merino is stronger than traditional merino wool to make sure it lasts for many seasons to come.