Close your eyes. Think “jeans.” Now open. They were 501® Originals, right? With a classic straight leg and iconic styling, the Levi's Men's 501 1999 Surf Prem Regular Fit Jeans is literally the blueprint for every pair of jeans in existence — burned into the world’s collective cortex ever since Levi Strauss (the man himself!) invented them in 1873. To this day they’ve never gone out of style. And they never will.