The Columbia Women's Glacial IV Half Zip Fleece is a popular choice for women looking for a synthetic base layer top that offers both warmth and comfort. Made with 100% polyester microfleece, this top is soft and cozy. The half-zip design allows for easy ventilation and temperature control. It features Columbia's Omni-Wick technology, which helps to wick away moisture and keep you dry. The relaxed fit provides a comfortable and flattering silhouette. Whether you're hiking, skiing, or simply running errands, this top is a versatile and stylish option.