It looks like Stone Island isn’t afraid to use unconventional fabrics in their clothing line. We first saw a glimpse of that in their all-reflective jacket ($900+) and now we see it in their special Heat Reactive Jacket which uses thermosensitive liquid crystals in its fabric to change the color of the jacket based on the temperature.

If it’s cold, the jacket is dark and if it’s hot the jacket becomes greenish. I think this is cool, and at $763, certainly more affordable than the Stone Island Reflective Jacket