Not to mention that they're reinforced to help with puncture resistance. (geekwrapped.com)
Well engineered packaging structures typically combine multiple layers of plastic to build a set of properties needed at retail, such as puncture resistance, oxygen or moisture barrier properties, and seal integrity. (dupont.com)
Glenroy's packaging engineers first worked with Issa to understand the product's formulation, and then proceeded to engineer a durable, high - barrier flexible packaging lamination that would provide puncture resistance and durability for the pouch. (glenroy.com)