Stone Island are famous for pushing the boundaries of fabric development and in the words of the brand's creative director Carlo Rivetti, the research into the Italian label's material is 90% science-based.
Clearly they're onto something because this latest jacket from the brand for SS'11 is pure genius.
Here comes the science: "The fabric of the heat reactive jacket is treated with a thermo-sensitive coating that changes colour at high temperatures. Beginning at 27 degrees the molecules within the micro- capsules of the external strata undergo a rotation modifying the light course. The colour of the garment gradually begins to morph from the dark colour of the surface coating to a much lighter and brighter surface colour. When the garment returns to a normal temperature it recovers to its original dark coating colour."
Personally I think the jacket is sick even without it being able to change colour.
Get it here.