The Cuddl Duds Women's Softwear with Stretch Legging is a best-selling flannel base layer bottom for women on Amazon. These leggings are made from a soft and stretchy fabric that provides excellent warmth and comfort. The flannel lining adds extra insulation and softness, making them perfect for cold weather activities. The wide waistband and flatlock seams ensure a comfortable and chafe-free fit. With its versatile design and affordable price, these leggings are a must-have for any wardrobe.