If you are more of a night-time runner, the Guardian Running Light from Adventure Lights is a must. This bright, durable, and ergonomic little light will keep you safe when it counts. The modular design and included accessories allow you to either attach directly to your clothing via the belt clip or strap to your arm with the tactile armband. The Guardian Running Light is waterproof to 100m, impact-resistant and omnidirectional. They produce a bright light in either Steady-On or Flashing mode, with an incredible 3 miles of visibility. To switch light modes, simply turn the battery over and make use of the clever Reverse Polarity Program Switching technology. They are highly durable and lightweight - the perfect companion for your running adventures. Available in Yellow, Red, Blue, Green, and White.