For workers exposed to traffic traveling over 25 mph and who work against complex backgrounds. Zipper enclosure for secure closure of vest. Features high-vis color and reflective 2" silver stripes that make you easy to see both night and day, so it's ideal for a range of tasks where visibility is important. With a 100 percent polyester mesh fabric design and zipper closure, this vest is lightweight and easy to wear over clothing. Includes two lower internal pockets, two upper chest external pockets one including four pen pockets.