It's elimination week as presenter Claire McCollum welcomes the four designers back to the design studio to face two cotton-based fashion challenges.First, the designers have 90 minutes to turn a selection of pre-loved cotton casuals into a standout skirt fit for the catwalk. Finally, the designers must create a power suit inspired by the Ulster-Scots entrepreneurs who introduced industrial cotton spinning to Belfast in the late 1700s.Which two designers will make it through to the final? And which two designers will be sent home?