Here is a wearable bike lock designed to protect you and your bike. The Vivid Bike Lock has front and rear LED lights to keep you visible at night. It has a customizable 4 digit combination lock with 2 fiber core steel cables in its padded strap. As you can see in the below video, you get various light modes and brightness settings to choose from.
The Vivid Bike Lock features a waterproof LED strip and a waterproof battery pack. The battery life lasts over 70 hours. You can find out more on Kickstarter.