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Introducing the Big Zip EVO—the latest evolution in taste-free hydration from Platypus. Delivering an extremely high flow rate, self-sealing HyFlo™ bite valve, large drink tube, simple one-handed filling, easy cleaning, fast drying, quick access drink tube disconnect, leak-proof shutoff valve, and more, the Big Zip EVO is a top pick for hikers, backpackers, travelers and mountain bikers. The Big Zip EVO is available in 1.0L, 2.0L, 3.0L versions.
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