Carry less water and filter on the fly. Building on the innovative PackFlask™ design, this enhanced system features an integrated filter for fast, reliable hydration on the trail. Simply find a water source, fill and drink directly through the high-flow, self-sealing nozzle. The filter screws securely onto the flask, doubling as a squeeze filter for filling bottles or pots at camp. The stretch-mesh pouch securely attaches to your pack harness for hands-free use. Features Instant accessStretch mesh pouch attaches to your pack harness & securely holds the bottle within easy reach PackableEmpty bottle flattens, rolls & stashes away for easy packing Easy drinkingHigh-flow, self-sealing silicone nozzle for splash-free drinking on the move Dust coverProtects nozzle from dirt & debris; opens & closes with a single-handed flip Filter compatibleAttaches to most 42 mm threaded water filters to create a packable squeeze system Light & toughLighter than traditional bottles; made of durable TPU with RF-welded seams Specifications Capacity: 750 ml / 25 fl ozMaterials: TPU, PP, Silicone, POM, TPE, ABS, Hollow Fiber, Polyester, EVA, NylonSKU: FBX107Dimensions: 228 mm x 107 mm / 9.0 in x 4.2 inWeight: 116 g / 4.1 ozColour: Clear