Dare To Aks Talk And News About Our Differences 
I’m not sure if it’s the same thing, not having seen the ‘beakers’ you mention, but in the United States we frequently use coozies/cosies/koozies (pick your preferred spelling) to hold a can or bottle of beer. Most are soft foam cylinders that you fit a can or bottle snugly into with the goal of keeping your hand warm and the bottle/can cold (as most prefer their beer here). There are also sleeker models made out of wetsuit-type material with a zipper up the side, specifically for bottles. If you ever drink beer cold out of a bottle or can, they are indispensable.
