This top is designed for cold-weather activities and features chafe-free, seamless fabric with a metallic sparkle. It contains natural silver salts to help prevent odor-causing bacteria. The fabric is described as being thicker than other Athleta seamless tops, making it a good base layer for activities like hiking or skiing in cold climates. It also has thumbholes to keep the sleeves in place and provide warmth. The material is a blend of nylon, spandex, and other fibers.