The polyester interlock construction of our Columbia Men’s Fork Stream Hoodie offers casual pullover style, while providing full coverage against harmful midday sun. Providing UPF 50 protection, it’s lightweight and quick drying, making it the perfect solution for staying cool, while protecting your skin under intense sun-filled days. This technology featured in this hoodie is necessity for any long outdoor adventures. Made up of a combination of Columbia’s signature protection materials: UPF 50 shielding works to block harmful UVA and UVB sun rays, while the wicking nature of the fabric works to pull moisture and sweat away from the skin. With the signature Columbia logo running along the sleeve, You''ll remain cool, dry, in outdoor style. Columbia offers this shirt in multiple colors and sizes. 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.