A place in the quarter-final is at stake, and this week the sewers must face three technically taxing challenges from the world of lingerie.

First up, in the Pattern Challenge, it is time for bed as the sewers are asked to make a pyjama blouse. Piping is an intricate undertaking, and it should cover the cuffs and front.

For the Transformation Challenge, the sewers take shapewear and lace and, using their unique structure and form, create new outfits.

Finally, it’s ‘boom or bustier’ as the sewers tackle boning and make bustier dresses in the Made-to-Measure. Their ability to fit a model is put to the test - there is nowhere to hide if a bustier dress is not fitted well. Show less