The Orvis River Guide Short Sleeve Shirt - Tidal Blue features cotton in the blend that keeps you comfortable, polyester that wicks away moisture, and spandex that allows the shirt to move with easy. Whether you're fishing or traveling, one secured vertical-entry zip pocket behind the left chest pocket and two button-through chest pockets can handle the things you need close at hand. The pencil hole on the left chest pocket is perfect for parking your sunglasses, while the sunglasses cleaner hidden in the hem helps keep them clear. And you'll appreciate the hidden button-down collar that prevents annoying flyaways.