Tactical SOURCE Hydration System High performance 3L hydration reservoir system. Exclusive 3 layer coextruded Polyethylene construction with Taste-Free, low maintenance, Glass-Like liner. Integrated Grunge-Guard technology. Further Information on SOURCE Hydration Technology Taste-Free System Glass-Like Liner technology in reservoir and tube delivers pure liquid taste with no plastic flavor. Technologie Glass-Like A multi-layer Polyethylene film utilizing SOURCE's Glass-Like technology, which prevents bio-film build up making the system self-cleaning. SOURCE's Glass-Like Film is 2000% smoother than standard TPU films, with virtually no difference from glass itself. Care-Free System Glass-Like Liner with Grunge-Guard technologies eliminates the need for cleaning. For days, weeks and even months of use simply refill and drink again and again with no special care required. Widepac Wide Opening Access Patented slide closure for easy filling, draining and cleaning. Airtight Seal! (U.S. Patent No. 7,648,276,B2) Specs WXP 3L Liquid Capacity: 3L/ 100oz Hydration System: WX Tube: Tube Cover 94cm/37in long PE Valve: Angled Storm-Valv Weight: 0.24kg/0.53lbs Reservoir: 435 micron co-extruded Glass-Like Dimensions WXP 3L Empty: Length 17”/43 cm Width 8”/20.5 cm Max. Depth 1”/2.5 cm Full: Length 16”/41 cm Width 5.9”/15 cm Max. Depth 3.7”/9.5 cm