The Men’s LYKKEN Short Sleeve Shirt by Marmot is your most versatile shirt for travel, outdoors adventures, patio time – anything you can think of. The breathable, lightweight fabric is partially recycled from plastic bottles. An Ultraviolet Protection Factor of 50 wards off harmful rays. Trek longer in the quick-drying body. Durable flat-felled seams and the shirt-tail hem are comfy classics.