Which 1960s packaging innovation was initially rejected by the beverage industry but later revolutionized portable drink consumption and remains iconic today?

Throughout history, product packaging has evolved dramatically - from simple utilitarian containers to innovative marketing tools. Some packaging designs were so revolutionary they changed entire industries or became cultural icons themselves. This trivia question explores a pivotal moment in packaging history that transformed consumer behavior and set new standards for product presentation.

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The pull-tab aluminum can (developed by Ermal Fraze in 1963)
The Tetra Pak cardboard carton (introduced to the US market in 1962)
The twist-off metal bottle cap (patented by John Crown in 1965)
The plastic soda bottle with built-in handle (developed by DuPont in 1967)