The fashion industry is the biggest polluter of our planet besides oil, so for reduce, reuse and recycle week, all the fabric in the haberdashery is replaced with charity shop clothes and soft furnishings. To breathe new life into this old fabric, host Joe Lycett kicks the seven remaining home sewers off with a pattern for a man's bomber jacket, which must be pieced together from four secondhand women's garments. Judges Patrick Grant and Esme Young are looking for precision sewing and the ability to design and create garments using attractive colour combinations.In the transformation challenge, the sewers are tasked with turning laundry bags into stylish, wearable garments, and then have to use old knitwear to create a made-to-measure jumper dress, perfectly fitted to their model. One of the jumpers has to be brought in from home and mean something to them personally. It's a Sewing Bee first, as the sewers have never been asked to sew with knitted fabrics before.