140 Years of Denim

It's difficult to imagine life without blue jeans. They're resilient and comfortable, they go with (almost) everything, and they make glorious Lana Del Rey song titles. But how did a simple piece of workwear become the wardrobe staple we know today? From the birth of the iconic Levi's 501 in San Francisco to the high-fashion runways of Milan, we track the evolution of denim in its best--and worst--incarnations.