Which Levi's jeans model is a bootcut style first introduced in 1969?

Levi's 517 is the bootcut jeans model first introduced in 1969.

The 517 was shaped to sit close through the seat and thigh before widening slightly below the knee. That cut allows the jeans to fit over boots, which explains the model's bootcut description. It became one of Levi's most recognizable styles outside the straight-leg 501 family.

People sometimes mix up the 517 with the 527, another Levi's bootcut style. The 517 is the older, classic model and is commonly identified by its regular bootcut silhouette. It also differs from the 505, which is straight-legged, and the 501, whose historic identity is tied to its button fly and original five-pocket construction.