The TSLA Women's Thermal Wintergear Compression Baselayer Pants are a highly rated choice for women's synthetic base layer bottoms on Amazon. These pants are made with a blend of polyester and spandex, offering a snug and supportive fit. The thermal Wintergear fabric provides warmth and insulation, making them suitable for cold weather activities. These pants have a compression fit, which helps to improve blood circulation and reduce muscle fatigue. The moisture-wicking fabric keeps you dry and comfortable during intense workouts. These baselayer pants have a wide waistband and a stretchy construction for a comfortable and secure fit. They are available in various sizes and colors to suit different preferences.