Nathan QuickStart 4L

This 1.5 L hydration bladder vest provides a low-profile, minimalist way to comfortably wear your water and bring along other essential items on your journey. 1.5 L Hydration Bladder Included Front Storage for nutrition and phone - fits up to iPhone 8 Plus Main back zippered pocket for extra layers and other running essentials Adjustable front and side straps for dialing in a perfect fit Soft perimeter binding prevents chafing Specs Weight without Bladder: 5.5 oz/156 g Weight with Bladder: 9.5 oz/269 g Storage Capacity: 244 cu in/4 L