Actress Sienna Miller attends the 2015 Social Good Summit at 92Y on September 28, 2015 in New York City.
(September 27, 2015 - Source: Mireya Acierto/Getty Images North America) see more angles »

Sienna Miller Cropped Jacket

Sienna Miller looked very refined up top in a Chanel cropped jacket during day 2 of the 2015 Social Good Summit.
Brand: Chanel

Sienna Miller Skinny Jeans

Sienna Miller contrasted her chic jacket with casual skinny jeans.

Sienna Miller Pumps

Black Mary Jane pumps injected some vintage appeal.