Razor: for integration with ballistic vest via MOLLE; 6 rows of MOLLE for attachment of equipment; velcro top opening for easy access to bladder; closed cell insulation keeps liquid cool. Widepac and Low Profile: User-friendly Widepac slide closure opens wide, for easy filling and cleaning; provides airtight, leakproof seal; centered baffle wall keeps low-profile shape of reservoir, at any water-level. Storm Push-Pull Valve: no-bite high flow drinking valve with twist-to-shut mechanism; secure lock for storage and transportation. Drinking Tube: weave covered drinking tube keeps liquids cool and insulated; QMT quick connector with auto-sealing mechanism allows easy attachment. Unique SOURCE Hydration Technologies: Glass Like properties and Grunge Guard prevent dirt build-up and provide purest water taste; virtually self-cleaning and low maintenance; Widepac closure for easy refill.