What do you call a sailors flared trousers?

Sailors' flared trousers are commonly referred to as "bell-bottoms." This style features a fitted waist and thigh with a flared leg that widens from the knee down. Bell-bottoms became popular in the 1960s and 1970s, often associated with naval uniforms and counterculture fashion. They are characterized by their distinctive shape and have made a comeback in various fashion trends over the years.