Teen Vogue's Mary Kate Steinmiller, before Rodarte (I think!), NYC, September 2013.
Work day in the heat? Try a shell top with a midi pencil skirt (and add a jacket for the office) like Mary Kate.
Recreate Mary Kate's look (kind of):
Midi pencil skirt: Wes Gordon Buckled High Waist pencil skirt, Torn by Ronny Kobo Ronny skirt, ASOS Linen split front pencil skirt, A.L.C. Thea skirt, Topshop lace pencil skirt, Leith High Waist tube skirt, ASOS midi skirt in jersey, or A.L.C. Midweight mohair skirt