After years of study and million dollars of venture capital, design students Anna and Terese managed to create something revolutionary: an invisible bike helmet. It is to be worn around the neck, and contains an inflatable airbag shaped like a hood that triggers in case abnormal movements that were thoroughly studied. It turns on when the zip is pulled up and the snap is fastened, features an LED logo that lights up when on, six LEDs that show the battery level, a micro USB port to charge the battery and even a black box! Hövding looks good (not bulky) and will save your life. Price tag: $450. See more in the video below. Enjoy!