Reflex Shirt - Short SleeveHidden zipper front closure for easy, tapered closure system. Flex underarm mesh vents provide body heat ventilation and increased range of motion. Dual communication wire access openings in side seams to keep wires obscure. Chest pockets with pleats, dual access top and side utility pockets and scalloped flaps. 65% Polyester 35% Cotton RipStop, 18% Fiber Stretch, 5. 8 oz sq yd. Machine Washable.