Shhh... This shirt is made for those who understand fishing isn't just about catching fish.Yes, these are fresh new colors. No, they aren't ordinary technical shirts. Yes, you want the fish to be biting. No, you don't want to go home early if they aren't. Columbia's PFG Solar Shade Shirts provide UPF 50+ sun protection AND keep you measurably cooler, so staying out on the water all day won't leave you feeling like a boiled crawfish. You've probably figured out the key to great sun protection is choosing a shirt you'll actually use. If it isn't comfortable or doesn't perform like your favorite fishing gear, it'll live out its days in your closet, not on your back. Once you put on your new PFG Solar Shade Shirt, the challenge will be finding enough time when you aren't wearing it so that it can be washed. This shirt features a revolutionary technology that just might make all of your other technical shirts obsolete. And being part of Columbia's PFG collection, you know you'll also be getting essential fishing functionality as well. 100% polyester. Imported.Omni-Shade Sun DeflectorThis technology is what separates this shirt from all the rest. Previously, high ultraviolet protection factor (UPF) shirts were good at blocking UVA and UVB rays (the ones that cause premature skin aging and wrinkling and burning of the superficial layers of your skin), but not as good at keeping you cool. With Omni-Shade Sun Deflector, that all changes. Thousands of tiny, mirror-like dots coated with titanium dioxide (a mineral used as a sunscreen ingredient in cosmetics to protect skin from UVA and UVB radiation) are applied to the outside of the shirt to actually deflect sunlight away from your body. So those harmful rays are scattered harmlessly in all directions, ensuring less of the sun's energy is absorbed. The Omni-Shade Sun Deflector fabric is also breathable and wicks away sweat so you feel cooler while staying protected.Omni-Shade UPF 50+The tightly woven fabric in this shirt provides a UPF rating of 50+. That means less than 1/50th of the UV radiation it encounters is allowed to pass through to your skin. Kind of like high SPF sunscreen. But unlike sunscreen, you don't have the mess and hassle of constantly having to reapply it. This shirt's Omni-Shade fabric even carries The Skin Cancer Foundation's Seal of Recommendation which is given to products meeting their standards