Inflatable bike helmet hidden in a scarf is quite a revolutionary idea in this space (already on the market, but expensive): http://gizmodo.com/5949067/the-rid

Inflatable bike helmet hidden in a scarf is quite a revolutionary idea in this space (already on the market, but expensive): http://gizmodo.com/5949067/the-ridiculous-high+concept-inflatable-bike-helmet-is-finally-buyable http://gizmodo.com/5949067/the-ridiculous-high+concept-infla...