John Collison on Twitter: "Many people recommending a @hovdingofficial airbag as the helmet answer. https://t.co/UOysPvoslf" / Twitter
John Collison on Twitter: "Many people recommending a @hovdingofficial airbag as the helmet answer. https://t.co/UOysPvoslf" / Twitter
![John Collison on Twitter: "Many people recommending a @hovdingofficial airbag as the helmet answer. https://t.co/UOysPvoslf" / Twitter John Collison on Twitter: "Many people recommending a @hovdingofficial airbag as the helmet answer. https://t.co/UOysPvoslf" / Twitter](https://pbs.twimg.com/media/D9f5SNcWkAAR0gp.jpg)