The current uniform for wealthy older men.jpg

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It seems like Issey Miyake pleats have become the "uniform" for wealthy men in their 40s and 50s (especially in creative fields).
They used to be clothes worn by Japanese grandmothers, but seeing them become a trend among middle-aged men, they must be quite comfortable.
However, since someone like me has already noticed it, I wonder if the trend is already starting to fade.