Wear a helmet when you’re on the bike just is not the most comfortable thing you can do to protect yourself. And yes, above all, not so nice – let’s be honest. The Swedish designers Anna Haupt and Terese Alstin thought about and designed it as an invisible helmet. It is, in fact, a collar, which serves as an air bag. In the video below, and Anna Terese tell their story and see the ‘helmet’ effect.