Terramar Women's Thermasilk Pointelle Pant is a highly rated option for women's flannel base layer bottoms. These bottoms are made from a blend of silk and spandex, which provides a luxurious and stretchy fit. The Thermasilk fabric is lightweight, breathable, and naturally moisture-wicking. The bottoms have a pointelle pattern that adds a touch of elegance. Whether you're going for a winter walk or lounging at home, these base layer bottoms will keep you warm and stylish.