Is this the world's first truly custom bike helmet? British start-up Hexr has an innovative approach to helmet manufacturing. Jamie Cook, former University of Oxford PhD student and founder and CEO of Hexr, argues that the polystyrene foam used for helmets for the last 40 years isn’t actually the ideal material for helmet design. EPS foam was designed for flat surface packaging, not rounded shapes like heads, suggests Cook; because it’s an insulator it actually hardens on impact.
By contrast, the material used by Hexr, Polyamide 11, is a heat conductor with a hexagonal honeycomb structure, so on impact the forces are spread over a wider area and the individual cells of the structure soften, which reduces the peak force. Hexr claims a 68 per cent better impact control than a standard helmet. Polyamide 11 is also fully renewable, using oil from castor beans, so it’s kind to the planet.
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