Sien Antwerp is a multibrand store in Nationalestraat in Antwerp. They carry hot designer brands like,

Boudicca, Christian Wijnants, DIdier Ludot, Fogal, Hussein Chalayan, iris van Herpen, Jason Wu, MiH Jeans, Proenza Schouler, Roberta Furlanetto, Sandra Backlund, Sophia Kokosalaki, The Row, Vivienne Westwood Gold Label. 

Also online at www.sien-antwerp.com