The title of this post is the marketing slogan for Hydro-Tech's line of air conditioned shoes. There's a little air bladder in the heal of the shoe that pumps air through them as you walk. You can read more about them at ShiftEast's post Air Conditioned Shoes Keep Japanese Salarymen Cool.
I can't imagine them actually working all that well, but you've got to love the enthusiastic salesman in the ad.
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