Marc Jacobs is on a roll. A mere 18 hours after presenting his sophisticated and mature signature collection, the globe-trotting designer went for lightning-speed street smarts at Marc—and it worked like a charm.

Wallflowers, beware: To a blaring soundtrack by the Cure, Jacobs' girls stormed the runway wearing super-tight, faded and striped jeans, fitted military overcoats, graffiti-printed sweats and T-shirts, flocked miniskirts and no-nonsense olive parkas.

It's the kind of look that has made headlines in London for the last few seasons, but Jacobs added preppy elements to the mix, like varsity bomber jackets, rugby shirts, skinny ties and corduroy jackets, all layered haphazardly. Even the girliest clothes—cherry-print ruffle skirts, wool felt school blazers and a floral peplum dress—looked modern and tough when worn with triple-layered elastic belts and chunky ankle booties.