"It's not just about wrapping things in the least costly single layer structure anymore," said Heather Chandler, president, Sealstrip (Booth #C-3502). Barrier properties in today's packaging can help foods stay fresh for longer. Brands can also turn to packaging solutions that leave less air in a package after the buyer has enjoyed part of the snack, explained Chandler. Sealstrip produces Peel&Seal and FreshPak, pressure-sensitive tape closures similar to a zipper that run as part of a flexible bag when the package is formed.