Awesome New With Tags, Never Worn Mini Dress or Tunic! Wear it Alone or over Black or Ivory leggings or skinny jeans and make a statement! Twenty8Twelve is Sienna Miller's (the actress) label. A favorite among celebrities and "It" Girls everywhere. 55% Silk 45% Cotton with a generous Tie at the Hip or Waist. The style is called "Marcia." Could even be a VERY Chic summer bathing suit cover-up! Love!