It was reported late last year that Sienna Miller and her sis Savannah were going into the business of designing clothes. Well, Portfolio has released the first ad photo and details of Twenty8Twelve (Sienna's birthday) and though you can't see much from the black-and-white photo, the collection seems promising, as it's not going to be attached to any particular chain store. If the collection will mimic Sienna's boho-chic style, I'll be happy!
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