Developers in Sweden are working on an air bag known as a Hövding for bikers that fits around the neck like a scarf and goes off whenever the rider is an accident.
Hövding allows bicyclists to protect their heads on the road, without sacrificing style in the process. Hövding is a collar for bicyclists, worn around the neck, and is designed to blend in with clothes. The collar contains a folded up airbag that surrounds your head if you happen to have an accident. Hövding has two parts: a collar and a shell.
See Hovding.com in English …
hovding.com/en_index.php