Columbia Men's Low Drag Offshore Short Sleeve Shirt 100% Other Fibers Imported Omni-Wick technology Omni-Shade UPF 40 sun protection Antimicrobial treatment protects this product from bacterial growth Quick drying Vented. Rod holder Omni-Wick moisture Management Omni-Shade UPF 40 sun protection Antimicrobial trement protects this product from Bacterial growth Quick dry fabric