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Title: great bladder
Review: This bladder is pretty awesome. I used it to go on a 3 day hike through the Big Cypress Swamp in South Florida. Not only did it hold up well with about 35 lbs of gear inside the bag this bladder was in, but it stayed pretty cool despite the sun beating down on us. It warmed up by the end of the day, but I really can't complain when it's about 85 degrees outside and the water remains "room temp" in the heat of the day. It is quite durable.
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