Description of Ex Officio Air Strip™ Lite Check L/S Shirt Make your carry-on count. Our #1 selling shirt, the Air Strip protects you from the sun with built-in UV protection and keeps you cool with climate control ventilation. ExOfficio clothing field-tested and approved by the African Wildlife Foundation. Features: Ultra lightweight Dryflylite Check -- 50% Nylon / 50% Polyester. 2.5 oz/sq yd Imported. Garment Weight 6 oz. Soft, moisture wicking finish, plus wrinkle resistance for comfort High-speed drying time and increased breathability with the added benefits of an Airomesh Plus™ lined cape vent and Air Strip™ ventilation system Adjustable 3-position sun collar and 30+ UPF for excellent UV protection Pleated bellows pockets with a hidden security zip pocket for your convenience and peace of mind Handy roll-up sleeve tabs; utility tab is for keeping your rod steady while tying off a fly Peach finish is soft to the touch