The Editoralist's Kate Davidson Hudson, before A Show, NYC, September 2015.
Sophisticated and elegant: a button-front skirt teamed with a sleeveless turtleneck and nude sandals (an a lovely umbrella which I would be sure to lose in 5 mins).
Recreate Kate's look (kind of):
Sleeveless turtleneck - Commando Mockneck sleeveless turtleneck bodysuit, New Look Turtleneck body, ASOS The Turtleneck body in rib, Rag & Bone Briony turtleneck top, Theory Wendel sleeveless turtleneck top, or Versace stretch-jersey turtleneck top
Button-front skirt (long, short and in-between!) - Dsquared2 High Waisted skirt, Burberry Brit Button-front skirt with pockets, Pierre Balmain button-detailed pencil skirt, Shakuhachi Joux Joux trench wrap skirt,Nicholas N/Nicholas Curve skirt, 7 For All Mankind Utility pocket skirt, MiH Jeans Damas skirt, or J Brand Ani stretch-denim skirt