Interesting design, not sure I’d trust it though if I came off landed on my head.
The Tatoo Helmet, designed by Julien Bergignat and Patrice Mouille, is meant to be an easily stored, totally recyclable bike helmet.
“Tatoo” is derived from tatou, the French word for “armadillo.” And that’s what the design evokes. Rather than a single carapace, it comprises several polypropylene strips, which come into shape after the joints are clicked together. The entire helmet is made of polypropylene, so that it’s readily recyclable. When you’re not wearing it, it can be packed flat for storage:
Via Fast Company