The Columbia Women's Glacial IV Half Zip Fleece is a popular choice among women for a casual base layer top. Made from soft and cozy fleece fabric, this top provides warmth and comfort during chilly days. The half-zip design allows for easy ventilation and temperature control. It features a flattering fit and is available in various colors and patterns. Whether you're going for a hike, running errands, or simply lounging at home, this base layer top is a versatile and stylish option.