Which of these military-to-civilian product transitions represents a genuine retail success story?

Throughout history, many military innovations and designs have crossed over into civilian retail products, creating some of the most recognizable and successful brand stories in consumer markets. This poll tests your knowledge of how military history has influenced retail success stories and product development. Can you identify which military-inspired consumer product transition is historically accurate?

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Ray-Ban Aviator sunglasses, originally designed for U.S. Air Force pilots in the 1930s to protect their eyes at high altitudes
Columbia Sportswear's heat-reflective technology, developed from Soviet submarine thermal shielding during the Cold War
Victorinox's Swiss Army Knife, originally created as a medical tool for battlefield surgeons during the Franco-Prussian War
Burberry trench coats, first commissioned by the Japanese Imperial Navy for their officers during the Russo-Japanese War