The REI Co-op Women's Midweight Base Layer Crew Top is a top-rated option for those seeking a reliable and affordable base layer top. Made from a blend of polyester and spandex, it offers excellent moisture-wicking and insulation properties. The fabric is soft, stretchy, and provides a comfortable fit. The crew neck design offers extra coverage, while the flatlock seams prevent chafing. Whether you're hiking, camping, or engaging in other outdoor activities, this base layer top will keep you warm and dry.