What does Levi's 501 means?

Levi's 501 refers to a classic style of denim jeans produced by the Levi Strauss & Co. brand. The "501" designation originated in the late 19th century, representing the original denim style that was designed for durability and comfort. Known for its straight leg cut and button-fly closure, the 501 has become an iconic symbol of American culture and fashion. It remains popular today for its timeless appeal and versatility.