evecase 2L Hydration Pack, Bladder, Sip Tube, and Bite Valve - NWOT. Sturdy, adjustable waistband buckle, adjustable chest strap, and adjustable shoulder straps allow you to snug this hydration pack to your body’s unique shape. The bladder sleeve is separate from the deep inner storage pocket. Two zippered exterior pockets on the waistband allow easy access without removing the pack. One roomy rear exterior zippered pocket provides even more storage. A bungee cinch can serve multiple exterior storage options. The bladder, sip tube, and bite valve are still sealed from the manufacturer.