Patagonia Men’s Long-Sleeved Sun Stretch Shirt. In the frantic moments when dark shapes appear and you have to reach way back to launch the 12-weight, you need a shirt that moves with you. You also need the calming effect of cool, lightweight fabric and serious sun protection. Our Sun Stretch Shirt fills the bill. This ultralight, long-sleeved shirt is made from a quick-drying 2.25-oz nylon/polyester blend with mechanical stretch and 30-UPF sun protection. The vertical-zip chest pockets hold anything you need to access quickly. While the Sun Stretch is designed specifically for fishing, it just might become your favorite shirt for all warm-weather pursuits.