In the beginning, there was one: the 501. Over the past century and a half, Levi’s jeans have become ... for comfort. Inseam: This is the second size listed on the tag. It refers to the measurement ...

In 2003, the 501 was overhauled for Levi's 150th anniversary. Modern tweaks included increasing the leg opening by half an ...

Inseam: This is the second size listed on the tag. It refers to the measurement from the crotch to the leg ... All Levi’s jeans follow a similar naming sequence, beginning with the 501.