This 4-pack of best-selling Thermos can insulators is at an all-time-low price of just $24 today. So buy this and you can throw out those useless fabric koozies you probably got free at a wedding.

Thermos’s stainless steel can insulator uses vacuum insulation and thick walls to actually provide a barrier between your beverage and the outside world. They go so far as to claim that it will keep a can cold for up to 3 hours, and even if that’s a little bit of marketing hyperbole, what could possibly be in that can that takes more than an hour to drink?

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Even during the winter months, it has the added benefit of protecting your bare skin from cold, damp cans, so you can use it all year round.