An x-ray of a Sailfish appears on the front of this Hook & Tackle Sun Protection long sleeve t-shirt. The shirt also features the Hook & Tackle logo on one sleeve and our hook logo on the back. Most sun protection t-shirts in the marketplace are made of 100% polyester. They are hot, clammy, odor-prone, do not breathe and generally are very uncomfortable. Cotton t-shirts are breathable and comfortable but do not provide effective sun protection. Hook & Tackle invented a solution called Solar System, a breakthrough technology that gives you the effective sun protection of a polyester shirt but with the comfort and breathability of a cotton t-shirt. We further upped the ante by adding moisture-wicking and odor-resistant technology allowing you to stay cool, fresh and protected from the sun's harmful UV rays. Imported.