The Columbia Women's Silver Ridge Lite Sleeveless Shirt is a quick-dry shirt for the trail. Columbia has left the sleeves off of this one so your arms can soak up a little vitamin D. The button up style and collar reflects a classic look, while the fabric itself wicks moisture and dries fast for all day comfort during the hike. Features of the Columbia Women's Silver Ridge Lite Sleeveless Shirt Omni-shade UPF 40 sun protection Omni-wick Comfort stretch Vented Interior security pocket Fabric Details Omni-wick ripstop 100% Polyester