Camping and hiking in the wild is fun. And we all know from Liam Neeson movies, it can also be pretty dangerous when you're out there battling evil wolves. Enter the friendly ghost of wearable technology. There are all sorts of gadgets to help you survive safely outdoors. One of the most useful things to have outside, especially at night in remote areas, is a light source. It helps you build a fire, cook food, even avoid hungry bears. So next up, wearable lighting to help you survive.