The REI Co-op Women's Midweight Base Layer Crew is a reliable and affordable option for women looking for a quality base layer top. It is made with a blend of polyester and spandex, providing a comfortable and stretchy fit. The moisture-wicking fabric keeps you dry and comfortable during your outdoor activities. The flatlock seams minimize chafing, and the crew neck design allows for easy layering. Whether you're hiking, skiing, or camping, this top will keep you warm and comfortable.