So this is an insulated water bottle. By some miracle of science, the air between the bottles keeps your drink from getting room temperature, which is the worst temperature for either hot or cold drinks to become. Being double-walled means condensation won't form on the outer layer, so it won't get you all wet. It's pretty much the best.
So sorry, but only 4 items are allowed for comparison, so we're comparing the first 4. I blame the gnomes and so should you.
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