Street goth is a look downtown and Harlem kids started rocking a couple of years ago. Not all trends originate from the runways. Recently we saw it go mainstream when we spotted celebrities like Kanye West in leather sweatpants and tank tops, and A$AP Rocky's rise to prominence wearing Black Scale and SSUR hats with brands like Alexander Wang and Rick Owens.
It's hard to say exactly what spurred the trend, but most likely it was a reaction to the bright, colorful and baggy streetwear moment that was coming to an end around 2009. Trends die hard, and cool guys' appetite for the next thing must be quickly satiated. It helped that designers like Alexander Wang, who uses this aesthetic, started to gain notoriety.