No one should ever drive drunk, but it can be difficult to monitor your blood alcohol content levels without taking a breathalyzer test. Drunk drivers are dangerous for others in the road. There are some small breathalyzers are on the market, they can be clumsy and awkward to use in public. Proof is a unique and elegant solution to this problem, as it's a wearable wristband that can discretely analyze you BAC levels through your skin. The makers of Proof managed to earn nearly twice what they were asking for after launching a successful crowd funding campaign. It is available in the market. So whoever feels it’s essence grab one and be safe.