A/X Armani Exchange (CLOSED)

You'll still find plenty of “greige,” Italian designer Giorgio Armani's signature neutral hue, at his more-affordable line's outpost, but its trendier, street-influenced styles draw a younger crowd than his high-end label's Madison Avenue boutique. Denim is, of course, de rigueur here, along with party-friendly gear sure to be a hit among the clubhopping set.