Most of us can’t quite comprehend the real and looming threat of air pollution. And why would we? It’s easy to brush off a problem that doesn’t appear to affect your life, let alone one that you can’t even see. But, what if you could see it? This line of sweatshirts are designed to shift patterns as the air quality changes. While the garments may not clean the air, they really bring light to a concealed yet highly dangerous urban problem.