Nathan StrobeLight LED Clip Color:Deep Blue and a unique midsole geometry

and a unique midsole geometry

Ergonomic flask designed to be easier to squeeze

FuelCell foam with approximately 3% bio-based content delivers a propulsive feel to help drive you forward

Merino Wool makes them anti-blister and anti-odor

and waterproof strobe

Nathan StrobeLight LED Clip Color:Deep Blue and a unique midsole geometrySafety with style in a slim, lightweight, and waterproof strobe. With 100+ hours of illumination, the StrobeLight has the perfect amount of light to keep you moving safely during all hours of the day. Secure clip on back easily attaches to belt, apparel, or gear High visibility blinking and steady light modes so you can be seen from a safe distance Water resistant so you can run longer in any weather LED: 3 LEDs 8+ max Lumens Battery: 2 x 3V Lithium