Soft gets a sun-shielding upgrade in this classic crew, featuring built-in UPF 50 in a warm cotton blend, while the Columbia logo runs boldly down the left sleeve. This long sleeve fleece features our signature UPF 50 sun protection that blocks UVA and UVB rays to help prevent sunburns and long-term skin damage. The crew neck style and cotton blend with fleece interior make it super cozy, the perfect layer for your next outing. Columbia's fleece crew shirt comes in many sizes and 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 chest, measure at the fullest part of the chest, under the armpits and over the shoulder blades, keeping the tape measure firm and level.