Joe Doucet's Sotera motorcycle helmet uses coloured lights to prevent accidents.

New York City-based designer Joe Doucet thinks we can do better and has created a helmet with a secondary purpose: to prevent crashes from happening in the first place. With its retro styling, this 3/4 brain bucket has a style in spades, integrated into the design is a light bar that wraps around the bottom back that acts as an LED indicator. And that light bar works in conjunction with a built-in accelerometer — turning the light bright red when you start to slow down and back to white light when you resume acceleration.