The Craft Women's Active Extreme 2.0 Baselayer is a top-rated synthetic base layer top known for its advanced moisture-wicking and temperature-regulating properties. Made from a blend of polyester and elastane, this baselayer offers a snug and supportive fit. The CoolMax Air technology enhances moisture transport and breathability, while the seamless design reduces chafing and irritation. Whether you're cycling, running, or engaging in other high-intensity activities, this base layer top will keep you dry and comfortable.