The 1969 film Easy Rider inspired the culture and fashion of the South Bronx gangs who went on to create hip hop as an alternative to gang violence.
Clothing is a anything worn by living beings. Typically clothing is made from fiber and textile, is gender specific, and is worn by humans. Clothing can also be non-gender specific, worn by an opposite gender, or worn by a non-human (like a puppy sweater).
Clothing changes depending upon culture, but is typically used for protective, hygienic, and decorative purposes.
The hipster effect is when anti-conformists rebel against the mainstream and ironically end up adopting similar styles thus becoming mainstream.