I just thought that this sounded interesting. It's called Kranium and it is a helmet made from cardboard. The helmet currently sells for $130. That's not exactly sheap, but it is great quality.
The Kranium is a structure of multiple double-honeycomb cardboard braces inside a plastic shell and with an EPS liner for comfort. The D2 cardboard acts like a cluster of small airbags which crumble progressively and absorb impact energy.
The Kranium is about two or three times better at shielding the head from force than a traditional EPS helmet. A traditional EPS helmet trasfers about 220G to the head after a 15 mph impact. The Kranium cuts that number down to 70G.
Another benefit that the Kranium provides is that it is much lighter than an EPS helmet, and is therefore more comfortable to wear.
The Kranium is a structure of multiple double-honeycomb cardboard braces inside a plastic shell and with an EPS liner for comfort. The D2 cardboard acts like a cluster of small airbags which crumble progressively and absorb impact energy.
The Kranium is about two or three times better at shielding the head from force than a traditional EPS helmet. A traditional EPS helmet trasfers about 220G to the head after a 15 mph impact. The Kranium cuts that number down to 70G.
Another benefit that the Kranium provides is that it is much lighter than an EPS helmet, and is therefore more comfortable to wear.



