used
First of all, the flavors do not last near as long as what they advertise. I have the 32 oz bottle and I only get about 1 and a half flavor out of it, and I leave mine set at 4 which is there recommendation to get the max flavor to last 6 fills of a 22 oz bottle so I'm getting just over 2 fills of a 20 oz bottle size. Another issue I have is that the ice melts extremely fast in my bottle. I can fill it all the way to the top with ice and fill the remaining bottle with water, and the ice melts within about an hour or so. I'm not exactly sure what the bottle is made out of but even in a regular cup, the ice lasts longer than that. I just don't understand why ice melts so quickly in these bottles when I fill it completely full of ice. I am constantly having to dump water out and refill with ice and water every hour or so. It's extremely frustrating. I would not recommend the cirkul bottle to anyone for these reasons.
What needs improvement
flavors do not last as advertised (45)bottle not insulated (7)
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