On the outside, its a standard-issue weekend shirt - but when push comes to shove, the Columbia H2Oline Short Sleeve Shirt for men delivers deck-worthy performance. Made out of thread spun from nylon pellets, it has a uniquely soft peached feel, but dont be fooled - its fully vented with hidden technical mesh details. ColoreCore technology means that the H2Olinewont face from exposure to sun or surf, no matter how A lot time you spend on deck.