Cambridge Copper 20 oz Stainless Steel Insulated Beer Mug with Handle NEW This vacuum-insulated barrel beer mug from Cambridge Silversmiths is double-walled and will keep any drink either hot or cold for hours. Double Wall, Vacuum Insulated, Stainless Steel, Construction, 20 oz Capacity, BPA-Free Clear Slider Lid, Keeps Drinks both Hot and Cold Good for Indoor or Outdoor Use, Sweat Proof Dishwasher Safe, Makes a Great Gift Mug Measures: 5.3 in x 3.7 in x 5.7 in