This is pretty strange. Then again, it's from Japan. Which, with its obsession with anything and everything to do with placing cute girls in compromising positions, makes it totally normal. Here we have adizero vs. Mini Skirt, a challenge to determine, well, we really don't know what. That the wind from a guy running with Adidas sneakers can whip up a girls skirt so you can see her panties? Yes, only in Japan.
We can thanks TBWA\Hakuhodo for this oddity which, as Japanese oddities go, is pretty tame.