We often write about how good they are in Japan about recycling and transit and saving energy, but they also are brilliant at making wonderful products like this (thank you Google for the wonderful translation: "Every clothes it cools! New conception! It just sprays from on the clothes instant cooling!"
It evidently is a mix of ethanol, a silicon surface agent and freon gas in an aerosol can. Of course the bacodo (salaryman) could just take off the jacket, I thought they were allowed to do that now. ::Strapya.com via ::Sci Fi Tech