It was a whole new culture in that period. The hippie youth lives in a community, fasting with unprocessed food. All hippie believers want to stay away from society, without work. There are also some people who set up small businesses to serve the hippie community. Astrology and hypnosis are also intimately associated with the hippies at that time. That unbounded and rebellious thought has strongly influenced the way hippie people dress. Hippie style is a most powerful and most radical revolution of modern fashion.

Source: Ugly