The H2 Belt Light is perfect for running or hiking outdoors, no matter what the weather is doing. The IPX7 waterproof light belt is built with a super-comfortable, high quality 1.5" elastic belt. The low profile light illuminates a full 180° so you still have access to your full peripheral vision while on the move. Due to the unique design, there is no bouncing light effect - the kind you would experience while wearing a traditional single-beam light and running. Rather than a small focused beam that shifts up and down with every stride, the H2 light belt provides a consistent broad spectrum of light. After a long run, easily remove the light and battery back so that the belt can be washed as needed.