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.