Actress Sienna Miller is seen arriving at the Maria Cristina Hotel during the 63rd San Sebastian International Film Festival on September 21, 2015 in San Sebastian, Spain.
(September 20, 2015 - Source: Carlos Alvarez/Getty Images Europe) see more angles »

Sienna Miller Leather Bowler Bag

Sienna Miller styled her casual look with a black leather bowler bag by Prada.
Brand: Prada

Sienna Miller Sweatshirt

Sienna Miller was low-key in a gray sweatshirt and black skinny jeans as she arrived for the San Sebastian Film Festival.