Koofin Performance Fishing Long Sleeves Shirt is made of a premium blend of 90% polyester and 10% spandex fabric blend that feels comfortable. This long sleeve shirt provide flat-lock stitching and seam-free placement to allow you to move freely and easily in a garment that fits closely—but not tightly. With UPF 50+ fabric protection, you can rest assured that you will be protected during those daytime fishing adventures.<br><br><br> Built of a lightweight and ultra-comfortable stretch-flex fabric, the Koofin Sunshirt keeps you cool via full-length, fine-mesh vented panels which allows optimal airflow to pass through the fabric. Enjoy the water, wind and sun without your skin paying the price. The Koofin Performance Fishing Shirt features mesh side vents to cool you down without compromising sun protection. Mesh Side Vents helps disperse body heat, making the body feel cool.<br><br><br>It is comfortable on your body and cool for running, fishing, swimming, hiking or any of your favorite outdoor activities. Koofin Gear is the solution to looking good, feeling good and protecting yourself from the elements.