Zoe takes on the trainer, a much-loved modern classic that's a marvel of engineering and design. Setting out in search of inspiration, she meets some of the UK's leading trainer designers and manufacturers, as well as the young inventors working on mind-blowing sustainable creations such as material made by bacteria and self-deodorising fabrics.

Materials engineer Zoe Laughlin explores an item so ubiquitous, most people don't give it a moment's thought: the toothbrush. With 200 million thrown away each year in the UK, she's on a mission to find a more sustainable solution.

Zoe explores an item that is extraordinarily intimate and transports us to other worlds: headphones. With 12 pairs sold globally every second, Zoe is on a mission to build her own unique pair. In search of inspiration, she heads to Hull University to discover an exciting new substance that can turn any surface into a speaker.