The whole helmet is claimed to tip the scales at 1.2 to 1.27 lb (550 to 580 g), depending on the size. Assuming everything works out, a pledge of US$99 will get you a Woolf helmet of your own ...

Hard and heavy is not actually better to avoid traumatic brain injury playing football. The Apache helmet shows why.

says Mohsen Mirkhalaf. Not only does the new helmet design provide better protection, but it is also lighter and the auxetic liner can be customised to individual head shapes using 3D printing.

“Design is really about solving human problems ... We are asking different questions: ‘How can we make a helmet that has a lot of lights, that can be seen from far away, and that drivers ...