The Under Armour Women's ColdGear Base Layer Bottom is another popular choice for cowgirls on Amazon. These bottoms are made with a dual-layer fabric that has a warm, brushed interior and a smooth, fast-drying exterior. They are designed to keep you warm and comfortable in cold weather conditions. The base layer bottoms also feature a four-way stretch construction for maximum mobility and flexibility. With a wide waistband and a fitted silhouette, these Under Armour bottoms provide a flattering and comfortable fit for cowgirls.