If trail running is your happy place, this comfortable tee will make it even happier with its sweat-wicking design, UPF 50, sun protection. A functional tee that features a combination of Columbia signature protective fabrics: Omni-Shade material works to block and protect the sun's harmful UVA and UVB rays, while the advanced Omni-Wick weave works to wick moisture away from the skin, keeping you cool, dry and protected all day. Columbia offers this men's shirt in multiple colors and sizes. Available in various sizes. Active and regular fit. To make sure the size you choose is the right one, please refer to our size chart.