The contestants are tested on a core fabric found in every dressmaker's cupboard: cotton.

The nine remaining amateur sewers are tested on their ability to make clothes on a miniature scale.

Claudia Winkleman takes the eight sewers back in time to the 1950s, when home sewing was at its height.

The remaining sewers take on a set of tasks designed to test their ability to add shape and structure to clothing.

It's the semi-final, and the five remaining sewers take on a set of tasks working with tricky and technical fabrics.

The competition reaches its conclusion as the three finalists enter the sewing room for the very last time, with the judges looking for cutting-edge designs.