interesting new helmet design from Roof, the Djagger

https://www.rideapart.com/news/783166/roof-djagger-prototype-folding-motorcycle-helmet-ems-access/

https://www.autoevolution.com/news/roof-s-latest-djagger-motorcycle-helmet-is-a-must-see-one-of-the-coolest-ever-but-is-it-safe-270272.html