Men's Columbia® PFG short sleeve, full button shirt with 2 button pockets on the front, 4 velcro pockets on the front, velcro label on the front, vented back, and gold WILLIAMS embroidered on the right chest. Omni-Shade fabric is rated 40 UPF for excellent sun protection. Purple. 100% polyester. PFG stands for Performance Fishing Gear.