Built for carefree, comfortable traveling, the ExOfficio Trip'r Shirt packs easily, dries quickly, offers UV protection and back ventilation, and keeps you looking great on extended trips. . Lightweight nylon and polyester fabric wicks moisture and dries quickly. Mesh lined back yoke ventilation for cooling airflow. Sun Guard 30 UPF for protection from harmful UV rays. Full snap closure at front placket. Hidden vertical security zip pocket on right chest. Drop in pocket on left chest. Floating pocket loop in left front pocket. Knife pleats at back for better mobility. Contrast fabric inside neck and cuffs. Center back integrated locker loop. Shirttail hem. Machine wash cold, no bleach or fabric softeners tumble dry low. Natural fit: Closer fit to the body through the chest and tapering to the hem maintains mobility and reach.