Dubble Bubble Sugar-Free Gum, Nostalgia Original Flavor. Contains Twelve (12) 3.25-Ounce Bags of Dubble Bubble Sugar-Free Gum, Nostalgia Original Flavor Bubble Gum. This gum is sugar-free, with low calories per piece and a chewy texture that maintains the classic bubble-blowing experience you expect from Dubble Bubble.