This innovative base layer is designed with a high-gauge stretch jersey that?s lightweight and airy, while providing UPF 50+ sun protection. Mesh side panels offer additional breathability. Contrast piping shapes the body and adds a unique design to this quintessential summer piece. Details Women's 92% polyester / 8% spandex long-sleeve quarter-zip Self-fabric collar UPF 50+ sun protection, mesh side panels for added breathability, tagless for superior comfort Machine wash cold; tumble dry low. Imported.