A compact hydration pack with a magnetic, hands-free return hose and a clean, streamlined design. Material: Nylon. Dimensions: 8.7 x 5.9 x 16.9 in.. Volume: 4 L. Weight: 1.06 lb. Reservoir capacity: 2.5 L. Stay hydrated without slowing down using the hands-free ReTrakt magnetic hose return system. User-friendly 2.5L HydraPak reservoir features a slide closure for easy cleaning and a locking bite valve to prevent leaks before and after your ride. Organize a pump, tools, nutrition and extra layers in 4L of cargo storage. Quickly access a phone in the exterior zippered pocket. Remain comfortable in all temperatures with spacer mesh backpanel. Stay visible in low light conditions with reflective trim and a tail light attachment loop. Spot clean. Imported.