Once you start carrying your beverages in vacuum-insulated stainless steel, you’ll never want to go back. Today only on Amazon, you can save big on Alpha Armur double-walled steel bottles in a variety of sizes and colors, all of which will keep drinks hot or cold all day long.

Your choices boil down to narrow or wide-mouthed bottles, but both varieties come in several different sizes, ranging from 12 ounces all the way to 50. I imagine some of the most popular versions will sell out before the day is done though, so place your order, and stay hydrated.

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