The Icebreaker Women's Oasis Base Layer Bottom is a highly rated option for women's cowgirl base layer bottoms on Amazon. Made from 100% Merino wool, these bottoms offer exceptional warmth and comfort. The fabric is naturally moisture-wicking, breathable, and odor-resistant, making them perfect for all-day wear. The flatlock seams prevent chafing, while the elastic waistband provides a secure fit. These base layer bottoms are also machine washable for easy care. Whether you're riding horses or engaging in outdoor activities, the Icebreaker Women's Oasis Base Layer Bottom is a durable and reliable choice.