Alicia Vikander in Proenza Schouler at a photocall for Jason Bourne in Madrid, Spain, July 2016. Photo by Getty Images.
Alicia Vikander in Proenza Schouler at a photocall for Jason Bourne in Madrid, Spain, July 2016. Photo by Getty Images.

Who: Alicia Vikander.

When: Wednesday, July 13.

Where: A photocall for Jason Bourne in Madrid, Spain.

What: A black off-the-shoulder Proenza Schouler Spring 2016 minidress with black sandals.

Why: As with her Céline look for the South Korea Jason Bourne press conference, the success of this look is in its carefree ease. The tie-front embellishment anchored the Proenza Schouler Spring 2016 collection, and here as on the runway, it's left undone, giving the look a nonchalant elegance. The contrast of the bare, off-the-shoulders top and the long sleeves below just clinch the design as our best dressed of the day. Sure, Louis Vuitton looks good on her, but so does everything else.

See Alicia Vikander audition for Humphrey Bogart's role in Casablanca, here: