your only concern will be leaving your competition behind

the dirt pounders have you covered

Superfeet’s proprietary carbon fiber & polymer blend

All-Day Protection

It's Feetures own world

Nathan | LightSpur | Unisex run fast your only concern will beQuickly 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.