This is cool - just don't ride in the rain.  cardboard bicycle helmets - able to absorb 4 times more collision force than a conventional polystyrene core helmets

Brilliant Corrugated Cardboard Kranium Helmet is 4 Times Stronger Than Polystyrene

This is cool - just don't ride in the rain. cardboard bicycle helmets - able to absorb 4 times more collision force than a conventional polystyrene core helmets

Think you understand helmets. Here is a helmet for sale in Europe that meets all European standards (same as ours here in the US). The helmet liner is cardboard.    See http://rec-law.us/RIhrxu

Abus Kranium AKS 1 cardboard helmet - Just in

Kranium Handmade series : Limited edition with beautiful veg tanned leather and custom stitching

Detail from Anirudha Surabhi's innovative "Kranium" bicycle helmet with cardboard honeycomb structure

La magia del cartón

Kranium cycle helmet made from cardboard - apparently absorbs 4 times the amount of energy as an existing polystyrene 'lid'.

Kranium helmet with carboard crush layer

Brilliant Corrugated Cardboard Kranium Helmet is 4 Times Stronger Than Polystyrene

The Kranium Evolutionary tree...Wonder what Darwin has to say about this...

The Kranium Evolutionary tree.Wonder what Darwin has to say about this.

D2  :  The Dual Density Honeycomb board specially designed to absorb the collision force.

: The Dual Density Honeycomb board specially designed to absorb the collision force.

Takes all the weight!

Cardboard Bike Helmet Proves To Be Surprisingly Safe!

90Kgs on a purely paper based structure!

on a purely paper based structure!

The kranium ABUS helmet at the Eurobike show

The kranium ABUS helmet at the Eurobike show

The naked truth !

The naked truth !

The Kranium Handmade Series : Gulf Edition

This cardboard bike helmet promises to be lighter than standard helmets, while absorbing up to the impact during a collision.

The inner liner structure of the Kranium Bern prototype

The inner liner structure of the Kranium Bern prototype

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