It used to be the cattle market, but now its the main city centre shopping street. All your favourite high street chains. About a million branches of H&M, plus Claudia Sträter, Zara, Mexx, Esprit, Sissy Boy, WE, Footlocker, Levi's store, Cool Cat, Six..... etc etc etc.
If its Armani and Ralph Lauren your're after, you need to go to Maison de Bonneterie (Rokin 140 with an entrance on the Kalverstraat), a smart department store in the old fashioned sense of the word.
The view from the café at the top of the Kalverstoren mall is fantastic. Good for a glass of wine before a hard Thursday evening's shop.