NWT… This Polka-Dot Cover-Up Dress from Tabitha Brown for Target is a stylish must-have for warm-weather occasions. This below-the-knee sleeveless cover-up dress features a square neckline and loose fit, and showcases a bold white-and-black polka-dot design. The soft cotton fabric keeps you comfy all day long, and there are side pockets for stashing your keys or phone.