Pouch: easy attachment to war belt or tactical vest via MOLLE webbing 1L (34oz) WXP Widepac hydration bladder: user-friendly wide slide opening and for easy refilling, drainage and cleaning; airtight, leakproof seal 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 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 protected drinking tube keeps liquids cool and insulated; QMT quick connector with auto-sealing mechanism allows easy attachment of water filter or UTA