Keep your mouth-watering flavorful beer nice, cool, and tasty in this double wall/double layer beer mug that will prevent your precious guests from ever having to taste the always-aggravating warm and flat beer. This mug is specifically designed to slow down the warming of the beer, keeping it cold and refreshing for much longer than the typical glass. The hollow bottom also reduces the chance of any dangerous shattering or breakage. And the nice “hourglass” figure makes it so that this mug fit nicely in your hands and is always comfortable to hold. To make things even more exciting, these glasses come in two different options: one huge 400 mL mug and an even larger spine-tingling 500 mL option. Add a few of these to your collection and you’ll be set to serve any experienced drinker.