This week, it's the fast fashion industry, the second most polluting in the world, with Sara Pascoe leading Reduce, Reuse, Recycle week.
In the Pattern Challenge, the sewers create a zero-waste workwear jacket.
The Transformation Challenge brings a surprise as the sewers enter the sewing room to find two tents. Discarded camping gear is given new life as the sewers transform their tent into a complete outfit.
Finally, in the Made to Measure, inspired by the Make Do and Mend campaign, the sewers raid their wardrobes and those of family and friends to create fresh outfits from garments no longer worn - embracing the essence of sustainability.
