The Nathan LightSpur Rx™ attaches to the back of your shoes for greater visibility in low light conditions. This Ragnar® approved device is the perfect travel essential for races that may require running in the dark.
Features 3 modes.
Perfectly tensioned to stay on shoes during high-impact motion.
Contains a fixed Li-ion Polymer rechargeable battery with an 8+ hour continuous burn, and 16+ hours of strobe.