The designers can finally design something actually wearable. For this challenge, the designers must create a party dress that could appeal to Banana Republic's customers. The winner, instead of being granted immunity, will have their dress marketed and sold at select Banana Republic stores. They have to pick their fabrics at the studios and have two days to complete their designs.

The designers, in five teams of two, must create a day-to-evening ensemble for Banana Republic, as well as a compelling and successful window display advertising the clothing. Each team has to finish their garment in one day.