Which commercial product became so trusted by US soldiers during WWII that it created lasting brand loyalty and led to significant post-war market dominance?

The development of military technology has often been shaped by commercial strategies and brand loyalty just as much as tactical needs. During World War II, one particular product became so iconic that soldiers developed fierce brand loyalty, influencing purchasing decisions for generations after the war. This poll explores a fascinating intersection of military history and consumer behavior that changed both warfare and post-war retail markets.

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Jeep vehicles (Willys-Overland)
Ray-Ban aviator sunglasses (Bausch & Lomb)
Zippo lighters (Zippo Manufacturing Company)
Gillette razors (The Gillette Company)