...male streetwear generally, over the past fifty years or so, she said, had been more heavily influenced by the design of military clothing than by anything else. The bulk of the underlying design code of the twenty-first-century male street was the code of the previous mid-century's military wear, most of it American. The rest of it was work wear, most of that American as well, whose manufacture had coevolved with the manufacture of military clothing, sharing elements of the same design code, and team sportswear.
That's the type of weird, just-under-the-surface observation that distinguishes a truly great author from a "mere sci-fi" author. Neal Stephenson has the same ability. Perhaps unintentionally in self-reference, by the way, one of Gibson's excellent recent novels is called Pattern Recognition.