Thanks Akoekhe for the considered review, not much out there yet on 'usability'. (That's some commute, prof of astronomy ?)

JohnJ80 From the saftey perspective that must be a key issue, how does it perform with rotational impact force? The obvious comparision is withhttp://mipshelmet.com/home (also from Sweden). My guess is the less rigid airbag should be better than an admittedly smaller conventional helmet, but just a guess of course. Hövding should at least collect real data from live crashes over time.

With the 'carboard' http://www.kraniums.com/ becoming available there is at long last evidence of brands looking to go 'beyond the standards'.