The Columbia Women's Glacial IV Print Fleece Legging is a popular choice for women looking for cozy and stylish flannel base layer bottoms. These leggings are made from a soft and lightweight fleece fabric that provides excellent warmth and comfort. The elastic waistband ensures a secure fit, while the slim fit design allows for easy layering under other clothing. With a variety of stylish prints to choose from, these leggings are both functional and fashionable.