Introducing the Big Zip EVO—the latest evolution in taste-free hydration. The Big Zip EVO provides 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.Features:Secure SlideLock: Slides both directions to easily open, securely close and fill reservoir.Handy Pincher Grip: Allows for easy one-handed filling.High Mount Quick-disconnect: Offers fast, easy access—no more digging down in your pack.Leak-proof Shut-off Valve: Instantly stops flow and offers reliable stowing.Semi-rigid Center Baffle: Offers low-profile support and makes for easy cleaning and drying.HyFLO Self-sealing Bite Valve: Improves flow along with new, larger 5/16" drink tube.Funk-free: Embedded Silver-ion protects clean water from mold & bacteria.Pure Platy Experience: All materials are certified taste-free, BPA-free, BPS-free, and phthalate-free.Technical Specifications 1.5 liter:Capacity (Standard): 50 fl. ozCapacity (Metric): 1.5 litersWeight (Standard): 5.6 ozWeight (Metric): 0.16 kgWidth (Standard): 8.5 inWidth (Metric): 21.6 cmLength (Standard): 13.0 inLength (Metric): 33.0 cmFilm: Polyurethane / PolyethyleneBite valve material: SiliconeCountry of Origin: Made in the U.S.A. of U.S. and Imported MaterialsTechnical Specifications 2 liter:Capacity (Standard): 70 fl. ozCapacity (Metric): 2.0 litersWeight (Standard): 6.0 ozWeight (Metric): 0.17 kgWidth (Standard): 8.7 inWidth (Metric): 22.1 cmLength (Standard): 15.0 inLength (Metric): 38.1 cmFilm: Polyurethane / PolyethyleneBite valve material: SiliconeCountry of Origin: Made in the U.S.A. of U.S. and Imported MaterialsTechnical Specifications 2 liter (Lumbar):Capacity (Standard): 70 fl. ozCapacity (Metric): 2.0 litersWeight (Standard): 5.4 ozWeight (Metric): 0.15 kgWidth (Standard): 14 inWidth (Metric): 35.6 cmLength (Standard): 8.7 inLength (Metric): 22.1 cmFilm: Polyurethane / PolyethyleneBite valve material: SiliconeCountry of Origin: Made in the U.S.A. of U.S. and Imported MaterialsTechnical Specifications 3 liter:Capacity (Standard): 100 fl. ozCapacity (Metric): 3.0 litersWeight (Standard): 6.5 ozWeight (Metric): 0.18 kgWidth (Standard): 9.0 inWidth (Metric): 22.9 cmLength (Standard): 17.2 inLength (Metric): 43.7 cmFilm: Polyurethane / PolyethyleneBite valve material: SiliconeCountry of Origin: Made in the U.S.A. of U.S. and Imported Materials