The Tencel Patio Camp Collar Shirt by Wythe is made from silky Tencel gabardine, which is a fancy way of saying, this shirt wicks moisture and breathes easy when the heat index maxes out. But that's not giving Tencel enough credit. It's a regenerative fiber made from wood pulp that realizes as a beautiful silk like fiber that feels great against the skin. And, unlike actual silk, can be tossed in the wash.