BikeNav is an integrated system that uses wireless bluetooth technology to combine an easy-to-use Android App with hardware that ensures the safety and comfort off cyclists. BikeNav has a pair of powerful LED tail-lights that can be used to warn approaching cars of the biker's presence or to signal if the biker is going to turn. In addition, the proximity sensor which activates the tail-lights simultaneously causes the biker's phone to vibrate, warning him of the danger coming from behind and allowing him more time to react. The BikeNav hardware will be available integrated into a jacket, vest, or belt. The current iteration is exhibited in a shirt.