Invisible Bike Helmet: A Collar That Inflates Into an Airbag http://t.co/ZzfFA4fq via @Adweek AMAZING @FocusForward film by @fredrickgerten

Invisible Bike Helmet: A Collar That Inflates Into an Airbag http://t.co/ZzfFA4fq via @Adweek AMAZING @FocusForward film by @fredrickgerten