Nathan Fireball Hydration Vest 427cu in

Nathan's Fireball Hydration Vest includes two insulated SpeedShot flasks to keep your thirst quenched on long runs. Each insulated flask keeps your water cool longer, and there's a standard push pull valve for easy on the go sipping. The vest also features a hydration sleeve suitable for reservoirs as large as 1. 5 liters. Plus, there are pockets for energy gels, an ultralight extra layer, and smartphones. The shoulder straps feature sternum and waist straps to ensure a bounce free ride.