The lighter weight version of the best selling NB600 Groove, the Nerd NB400 Groove Belt carries two 200ml groove bottles with push-pull nozzles and a pocket for essentials or nutrition. The NB400 Groove sits securely on your waist with zero bounce or movement no matter the pace, offering easy one-handed access to hydration and gels while running.

Model Number:

Features:

• 2x 200ml ergonomic groove bottles for hydration
• Zippered storage pocket for nutrition and other running essentials
• Adjustable belt design
• Quick access storage with no bounce
• Holds race number