The polyester interlock construction of our PFG Terminal Tackle Heather Long Sleeve Shirt offers a contemporary “heather” twist to each of the color options, while providing full coverage against harmful midday sun with UPF 50 protection. It's also lightweight and quick drying, making it the perfect solution for staying cool while protecting your skin out over any highly reflective water. It's the ultimate day-out-on-the-boat staple… lightweight, durable, go-to gear. This technology featured long sleeve Tee is necessity for any day out on the ocean, lake, or river. Made up of a combination of Columbia's signature protection fabrics: UPF 50 works to block and shield you from harmful UVA and UVB sun rays known to cause skin damage, while the advanced wicking fabric works to pull moisture and water away from the skin. You remain cool while our signature PFG logo runs along the sleeve. Columbia offers this fishing shirt in multiple staple colors and sizes. Available in extended sizing. 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 sleeve. 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.