The Delta Shirt is designed with classic button-up construction to fit in perfectly onTHE J job or out on the town. The back is vented to increase air flow and breathability, and the vertical front pocket is just as useful on this shirt as it is your favorite Drake Waterfowl hunting jacket. Features: Back vents for breathability. Vertical chest pocket with zippered closure. Quick-drying, brea thable cotton/poly blend fabric.