Bluefin Biscayne Long Sleeve Shirt is made quick to wick, ultra breathable and fast to dry with a poly perforated design. Its ribknit collar feels soft against the skin, half zipper allows you to open your neck area to give extra breathability on those hottest of days. Made with 3.7-oz polyester & features a 30-UPF sun protection and an odor control treatment for the garment. Built-in sun block protects you even further. Sizes and colors available as displayed.