The Huk Icon X Tide Change Long Sleeve Shirt is designed to keep you comfortable with Huk’s ICE (internal cooling element) technology built in, this shirt wicks moisture and is quick drying. The cooling fibers help to remove heat from your skin keeping you cooler throughout the day on the water. An ideal layer for the warm fishing seasons. UPF +50 sun protection100% polyester fabricBuilt in mesh underarm panelsAnti-odor, fast drying, moisture wicking