Flavor: Touting itself as a "sour to sweet bubble" on its outside cellophane wrapper, 5 Zing is just that. On first chew, it's a bit tart and really stimulates the taste buds. Its sour is a pleasant sour, not overly pungent like some other "sour" gums. After a few minutes of chewing, the sour fades to a nice standard bubblegum flavor that you'd expect to find coming from Wrigley's.