NEWS – Asobu’s Frosty Beer 2 Go is koozie on steroids. This stainless steel double-walled vacuum insulated chiller is designed to work with both beer bottles and beer cans, so you don’t have to choose. Asobu has 3 pieces. The bottom, neck (for beer bottles), and a top that doubles as a bottle cap opener. You can grab one in a variety of colors for $29.99 from Amazon.