Nathan Quickstart 4L Hydration Bladder Pack

This 1.5-liter hydration bladder pack (w/4 L total storage capacity) 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 most large-format smartphones 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 Weight without Bladder: 5.5 oz/156 g Weight with Bladder: 9.5 oz/269 g Total Storage Capacity: 244 cu in/4 L Unisex; One Size Fits Most