Maartje Verhoef, after Chanel, Paris, September 2015. 
Peplum blouse. 
Recreate Maartje's look (kind of):
Susana Monaco Kiki short sleeve peplum top, Thakoon short sleeved peplum top, Preen Cadogan double-faced satin top, T by Alexander Wang peplum top, RVN Jaquard peplum top, Carven short-sleeve peplum combo tee, H& M lace peplum top, ASOS White stepped peplum top, Tome cotton-poplin wrap top, or Theory Denim peplum top