Quick-drying polyester/spandex blend fabric stretches with your movements Stretch fabric panels under the arms and back increase ventilation and comfort Articulated sleeve design prevents the sleeve from riding up or bunching as you paddle, row or cast Full-sleeve design provides maximum coverage and sun protection Grommet snap buttons down the front and two chest pockets NRS Men's Guide Long-Sleeve Shirt - The quick-drying, lightweight NRS Men's Guide Long-Sleeve Shirt is a high-performance, low-maintenance casual sun shirt making it an easy go-to for guides and paddlers around the world whether they're working, playing or relaxing.