Omni-Shade™ Broad Spectrum UPF 50 guards against skin damage using tight fabric construction and modified fibers to block UVA/UVB rays, so you stay protected in the sun Hidden shoulder vents and mesh back lining add extra breathability for hot, muggy conditions Quick-drying treatment allows garments to dry faster by helping moisture escape from the surface of fabric, so you stay comfortable while being active Lift-top front pockets within larger pocket for easy access to tools Utility loop for pliers or sunglasses Rod-holder loop on left chest helps free up hands when changing gear Antimicrobial treatment helps manage odor Buttons on collar secure it in the wind Button-up on center-front placket Columbia Bahama ll Short Sleeve Shirt Mens