Nathan | LightSpur | Unisex size:OSFM and a soft hand feel

and a soft hand feel that improves with wear

They are designed to provide target relief for maximum effectiveness

Captures the inside

as well as give you instruction for improving your running form

Nathan | LightSpur | Unisex size:OSFM and a soft hand feelQuickly and securely attaches to heel of your shoe Super lightweight so you don't feel a thing Multi settings for high visibility and added safety Waterproof so you can run longer in any weather Easily replaceable watch battery offers 100+ hours of illumination Usage Instructions: Press and hold power button for 2 3 seconds to turn on. Press again to switch between steady and strobe modes. Press and hold power button for 2 3 seconds to turn off.