Tracking at the speed of light
This sports top is designed to measure your movement without the need to strap on multiple gadgets.
The top is made from XelFlex, a fibre optic thread. Light can be pulsed through the fibres so an electronics pack can detect how the light is bent as the wearer moves, and then report back to a smartphone.
Designers Cambridge Consultants say the technology could be used for fitness and sports coaching, as well as to help with physiotherapy following an injury.