As I cooked on the climbs and froze on the descents on my nightride, I came up with an excellent idea for a material for jackets that science hasn't yet invented.
I want a material that is open and breathable when it's not windy, but closes down to be windproof when it is. Would need to be sensitive to relative air pressure across the garment, or something like that, so that the fibres swell up more on the upwind side the stronger the wind blows.
Ventile has done this for water for 50 years, so surely it's not beyond the ken of modern materials to sort it for wind?
What do you all think (and no I am not on crack).
