The Patagonia Men's Self-Guided Hike Shirt is a versatile, easy-care shirt for trail and travel made of lightweight, quick-drying recycled polyester ripstop with 50+ UPF sun protection. It has midback vertical vents for ease of movement and ventilation even when wearing a backpack. A shirttail hem keeps your shirt in place during movement and stays put under a hipbelt. Patch chest pockets with button-and-loop flap closures; left pen pocket. Fair Trade Certified sewn.