Which of these iconic retail products was originally developed for military use during WWII before becoming a household name?

The military sector has developed many technologies that later revolutionized retail and consumer markets. From GPS to the internet itself, military R&D has transformed how we shop and interact with products. This trivia question focuses on a famous product with military origins that became a massive retail success story. Test your knowledge of how battlefield technology found its way into everyday consumer life!

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Jeep vehicles, originally designed as light reconnaissance vehicles for the US Army before becoming a popular civilian brand in 1945
Ray-Ban sunglasses, initially created for Navy fighter pilots before being marketed to civilians after the war
Leatherman multi-tools, first commissioned by the Marine Corps for field maintenance before civilian production began
Coleman camping stoves, designed for portable military field kitchens before becoming outdoor recreation essentials