Gerry Cunningham loved the outdoors. Growing up in the 1930s, he hiked, skied, and rock climbed. But the 16-year-old had a problem: He had no good way to carry his stuff. So before every adventure, Gerry would toss his gear into a bag called a rucksack and then throw the rucksack on his back.
Rucksacks weren’t exactly comfortable. They were made of stiff fabric, and they had thick leather straps. Every time you needed something, you had to take the heavy bag off your back.
Gerry decided one day that he’d had enough of that, so he sat down at his mother’s sewing machine and made a new bag with a smart feature: zippers. After that, Gerry no longer had to take his pack off while climbing. All he had to do was reach over his shoulder, pull a zipper, and grab the item he needed.
Gerry’s bag was comfortable and easy to use. It was also the very first version of the zippered backpacks you love today.