Is London still the capital of young, feral, and fearless fashion? So far this week, the most visible trend is definitively classic—as in classical Greek design. At Ann-Sofie Back, the models wore dove gray and buttery drapery. Marios Schwab sent legions of models sporting Spartan-inspired minidresses of loosely hanging folds gathered together with thick gold [...]

Eye-rolling was pretty much the de rigueur fashion response to the pack of young women dressed in skimpy garb, feather boas, and devil horns—accessorized with signs proclaiming “Ban size zero” and “BIG girls are sexy”—who paced back and forth outside London fashion week’s main tent on Sunday. But more subtle subversion was to be found [...]