It's interesting that Amazuma, the delinquent girl that uses masculine pronouns, wears her skirt normally (no sweatpants and it's short enough that spats/shorts would be visible) while Honobe, the more feminine acting girl wears sweatpants under hers all the time. Even more interesting is both girls are rolling them up to be shorter than normal, as real uniform skirts go to at least the knee, usually mid-calf.
They're both defying gender stereotypes, it's neat.