Looking for a shirt that stands up to the sun's glare? You've come to the right place. Columbia Men's PFG Super Slack Tide is a first choice for enjoying a day out on the water and in the sun. The high quality materials used to craft this men's fishing shirt are what make it so special, while its modern classic fit speak to style and comfort. This fishing shirt features Columbia's sun protection technology to help prevent skin damage while outdoors. The material is crafted of UPF 40 to protect against harmful UVA and UVB rays, sunburns, and long-term skin damage. The vented back adds breathability to the shirt to ensure comfort even when things get hot; the 100% polyester fabric is lightweight and dries quickly to keep you cool. Lastly, this short sleeve shirt's chest pocket makes securing your smaller items convenient. Columbia's short sleeve fishing shirt comes in many inclusive sizes and stylish colors. Extended sizing available. Regular Fit. To ensure the size you choose is right, utilize our sizing chart and the following measurement instructions: For the sleeves, start at the center back of your neck and measure across the shoulder and down to the elbow. If you come up with a partial number, round up to the next even number. For the chest, measure at the fullest part of the chest, under the armpits and over the shoulder blades, keeping the tape measure firm and level.