Robbie rolled up in a singular look featuring baggy, low-rise jeans, cap-toe pumps and a Chanel 25 bag. She went for the shock factor with her top, which was a sheer slip tank over a lacy bralette. Given that the price of a cotton button-down at Chanel is presently $4,350, I wouldn’t be surprised if Robbie’s barely-there number was similarly priced. But luckily, more affordable alternatives abound, and I’ve rounded up four favorites to shop below.