WSJ's Senior Fashion Editor Laura Stoloff, after A Show, Paris, October 2017.
The casual summer elegance of a striped button down shirt + pristine white trousers. Sublimely worn by beautiful Laura. 
Recreate Laura's look (kind of):
Striped button-down shirt: Vince Menswear stripe shirt, Carven Striped cotton-poplin shirt, Max Mara striped shirt, Isabel Marant Lilanne striped shirt, Victoria, Victoria Beckham Striped cotton-twill shirt, Luisa Beccaria Point-collar striped linen-blend shirt, Frame Striped shirt, Alice + Olivia Striped twill shirt, or Joseph Thomas Striped button-front shirt
& Other Stories Straight Fit Pants, Ramy Brook Lincoln pants, Givenchy Straight leg pants, Max Mara Ecuba trousers, Topshop Topstitched tapered trousers, Raey Wide-leg boucle trousers, or Isabel Marant Roan High-Rise pants