KEEPS BEER COLD: Designed with double-walled insulation to keep beer colder, longer. Beer tastes better than in regular glass, and the unique shape makes drinks look beautifully suspended-in-air. Leave it in the freezer to have a chilled, drinking-ready glass on hand. HOLDS A FULL BOTTLE: Extra large capacity means the glass can take every drop from your beer bottle or can – up to 13 1/2 ounces.