After Kenzo, Paris, October 2015.
The season of the oversized/statement button down shirt: Oversized, Back-to-front, Oversized and split back or knotted.
Recreate her look (kind of): 
Victoria Beckham Oversized striped cotton-poplin shirt, Michael Kors Collection striped shirt, Equipment Daddy Blouse, Rag & Bone Nightingale shirt, ATM Long-sleeve striped boyfriend shirt, Madewell Ex Boyfriend Stripe Poplin shirt, Weekday Oversized striped shirt, Victoria, Victoria Beckham Asymmetrical Bow shirt, Sacai Striped poplin and guipure shirt, or Topshop Oversized Pinstripe shirt