This is a great invention, you can place a beer bottle inside, keeps it cold and hides it.  This is a stainless koozie.  You simply untwist the bottom, and inside is a koozie.  Slide in your bottle and twist the bottom back on.  The top opens and has a very convenient bottle opener attached to the top of the lid.  This really keeps you beer cold for such a long time and it keeps it hidden, for like the beach, or a concert, you cannot tell what is in the koozie.  It is easy to carry and it does not sweat.  Very pleased with this, you can also us a soda bottle if you want.  This is a great gift or to keep for yourself.

https://www.amazon.com/Stainless-Bottle-Koozie-Insulator-Standard/dp/B01K96S8S0/ref=sr_1_21?ie=UTF8&qid=1476132430&sr=8-21&keywords=stainless+steel+bottle+koozie+insulator

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