Lighter, softer, and now with stretch, our short-sleeved UPF 40 Open Air Caster is an update to our popular fishing shirt, keeping everything you love but with a new eco-friendly fabric and strategic ventilation. Quick drying and incredibly lightweight, our Open Air Caster features thermoregulating MarinoWul+ made with recycled plastic bottles and crushed oyster shells for eco-conscious performance and is treated with OutSmart Fresh odor control to keep you feeling fresh for more time on the water (and less laundry). New, low-profile ventilation is thoughtfully placed to add extra airflow where it's needed at the back shoulders, arm holes, and chest. UPF 40 sun protection fends off harmful rays with an extended collar stand to protect the back of your neck. Two drop-in front pockets keep small essentials handy with a hidden bungee sunglasses/tool keeper in the right pocket. A zippered chest pocket adds secure storage. Finished with a concealed button-down collar that lays flat in the wind, and a hidden sunglasses cleaner in the hem. Active Fit. Solids: 50% Nylon, 26% Recycled Polyester, 21% Polyester, 3% Spandex. Plaids: 55% Nylon, 45% Recycled Polyester. Washable. Imported. Sizes M(38-40), L(42-44), XL(46-48), XXL(50-52).