Jeans are a type of trousers, typically made from denim or dungaree cloth. Often the term "jeans" refers to a particular style of trousers, called "blue jeans", which were invented by Jacob W. Davis in partnership with Levi Strauss & Co. in 1871 and patented by Jacob W. Davis and Levi Strauss on May 20, 1873. Prior to the Levi Strauss patented trousers, the term "blue jeans" had been long in use for various garments, constructed from blue-colored denim. Originally designed for cowboys and miners, jeans became popular in the 1950s among teenagers, especially members of the greaser subculture. Jeans were a common fashion item in the 1960s hippie subculture and they continued to be popular in the 1970s and 1980s youth subcultures of punk rock and heavy metal. Nowadays, they are one of the most popular types of trousers, especially in Western culture. Historic brands include Levi's, Lee, and Wrangler.