ExOfficio Men's Air Strip Macro Plaid Long Sleeve Shirt 60% Polyester Imported 1/4 zip front built into a hexagonal-quilted body, with flexible jersey arms. 3-position back cape ventilation Side vents for increased air flow Hidden security zip pocket in right pocket Pen/Sunglasses slot in left chest pocket 3-Position button-down sun collar 3-Position airomesh plus back cape ventilation Hidden security zip pocket in right pocket