Just purchased my new YSL from a Saint Laurent store in Las Vegas. I previously called the South Coast Plaza store and they didn't have the black on black. When I was at the store at City Center, there were 2 sizes that the SA showed me, one was the smaller/squarish version which barely fit my iPhone 6+, and the other was a more rectangular shaped. I debated on this and even went to the Chanel store at Bellagio to compare. Love the YSL better even though the chain was a little shorter than the Chanel.