Designed with the artful mosaic floor and grand spaciousness of the Parisian flagship on Rue du Faubourg Saint-Honoré in mind, the Bellevue Hermès boutique ought to inspire lofty trajectories. So should the aviation-themed ready-to-wear fall collection, designed by Jean Paul Gaultier. Consider an iconic Birkin bag, done this season in the kind of worn-soft but tough-as-nails matte-gray leather you might find in the cockpits of Paul Allen’s historic fighter jets.