The Patagonia Lightweight Bluffside Shirt has a timeless silhouette, with a button front, short sleeves and button down collar. It is made from a soft, lightweight blend of 60% organic cotton/40% polyester, it breathes, feels cool on the skin and dries faster than a traditional all-cotton shirt. With a slim profile, a left-chest pocket and a shirttail hem that stays put when you’re carrying a shoulder bag or backpack.