ABU DHABI, United Arab Emirates — With the number of foreigners dwarfing that of locals in her hometown of Abu Dhabi, Asma al-Muhairi has become increasingly anxious at the prospect of her younger nieces abandoning their full-length black robes in favor of Western attire that seems to be everywhere she goes.

But it wasn't until the 23-year-old marketing worker came face to face with two scantily-clad female foreigners at one of the many luxury shopping malls in the United Arab Emirates that she decided to take action.

"While going to a mall, I saw two ladies wearing ... I can't say even shorts. It was underwear," said al-Muhairi, whose black abaya — a long garment worn by conservative Gulf women — is offset by a gold Versace watch and egg-shell blue handbag.