The History Behind Button Your Fly - Levi's

You love the shirt. Its big, block letters. Those bold colors. But where did Button Your Fly come from? We’ve got the answer for you. In 1954 we introduced the 501Z, a 501® jean with a zipper instead of a button fly. After its debut, a debate emerged between two camps of denim enthusiasts: loyalists devoted to the original button fly vs. those who loved the convenience and modernity of the zipper.
You love the shirt. Its big, block letters. Those bold colors. But where did Button Your Fly come from? We’ve got the answer for you. In 1954 we introduced the 501Z, a 501® jean with a zipper instead of a button fly. After its debut, a debate emerged between two camps of denim enthusiasts: loyalists devoted to the original button fly vs. those who loved the convenience and modernity of the zipper.

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