General: The ILPS 3L low-profile hydration reservoir system was designed for integration into ballistic vests. The ILPS Reservoir allows a fluid volume of 2L when inserted into a vest, and allows 3L in one package. Details: True Low Profile - Consistent thickness over the entire surface of the reservoir. The system maintains its constant thickness even with even storage. Gravity is not a problem and does not affect the shape of the bubble from Hi-FlowStorm-Valve - No-Bite push-pull valve with integrated shut-off mechanism. Drink as with a straw! Easy disassembly for cleaning. (U.S. Patent 6,622,988) Angled valve - valve rotates 360 degrees for perfect valve / mouth alignment. Allows the tube to be 25cm shorter QMT - Additional Inline SQCTM QuickConnector at the tube end, allows the connection of filter, UTATM or other accessories with a push of a button Cool Weave Cover - Tube Isolated and blocks UV light. Water remains cool and free of bacteria from first to last swallow Widepac Wide Opening Access - Patented slide closure for easy emptying and cleaning. Air seal Horizontal bubble QMT - Leave the drinking tube out of the ballistic plate bag without kinking the tube Specifications: Liquid capacity: 3L / 100 oz Weight (reservoir + drinking hose): 0.209 kg (0.127 kg + 0.082 kg) / 0.46 lbs Weight UTA: 0.017 kg / 0.037 lbs Reservoir: 435 µm co-extruded Glass-Like PE Valve: Angled Storm-Valve Tube: Weave Covered. 94 cm / 37 inch long Dimensions: Length: 13.4 inch/ 34 cm Width: 10.8 inch/ 27.5 cm Max. Depth: 2.6 inch/6.7 cm The black color refers to the tube, not to the drinking bubble!