The Slack Tide Camp Shirt combines Omni-Shade UPF 50 sun protection with Omni-Wick moisture management for long days outside. Tight fabric construction and modified fibers block UVA and UVB rays, while the wicking finish pulls sweat to the surface to evaporate fast. Back venting adds airflow, and the button-up styling keeps it easy to wear anywhere the sun gets intense. What Our Gearhead(R) Experts Are Saying:"I wore this through a full day on the water without reapplying sunscreen underneath, and my back stayed dry even standing in direct sun for hours. The fabric does the work instead of leaving me to manage the heat myself."