Where'd She Get It: Sienna's Pleated Skirt

Lily asks: Can you help me find where Sienna Miller got this white pleated skirt. It's adorable.

This skirt is actually from her own line, Twenty8Twelve. Here's where you can snatch it up:

Wilma Pleated Skirt, Twenty8Twelve, $255 (Simply click on Stockists to find a store near you)