Platypus Big Zip EVO 3 Liter. The Big Zip EVO delivers a significantly higher flow rate than previous Platypus reservoirs and a host of new features making it a great option for backpackers hikers and mountain bikers. Available in 1.5L 2.0L 3.0L and a Lumbar 2.0L. Package Contents: Platypus Big Zip EVO Platypus 10857: Big Zip EVO 3 Liter
