Researchers at Imperial College said such a garment could soon become a reality. They hope to create a cloak from a new material that can manipulate light. Normally, when light hits an object, it bounces off the surface and into the eye, making the object visible. The invisibility cloak made from 'meta-material' would work by 'grabbing hold' of light waves and making them flow smoothly around an object, in the same way that water in a river flows round a stick. Putting the cloak on would render the wearer invisible to the human eye.