Omni-wick - the ultimate moisture management technology for the outdoors. Omni-wick quickly moves moisture from the skin into the fabric where it spreads across the surface to quickly evaporate—keeping you cool and your clothing dry. Signature logo: our signature Columbia logo is featured on the sleeve for added style. Columbia women's pfg super tidal tee ii long sleeve shirt features our signature wicking fabric that pulls moisture away from the body to keep you dry, sweat-activated cooling technology, and UPF 50 sun protection to help block harmful UVA and UVB rays. Classic fit: this long sleeve shirt features a classic fit ideal for everyday wear. Fabric: this pfg super tidal tee ii long sleeve shirt features a polyester fabric with stretch to keep you comfortable during activity.