TherMax vacuum insulation virtually eliminates temperature change by creating an airless vacuum space between 2 stainless steel walls. The result is an insulation layer that performs better than any other. Superior insulated container keeps beverages hotter, colder, fresher, longer. Insulated cup with stainless steel exterior. Twist and pour stopper lets you pour without removing the stopper. Ergonomic handle with soft nonslip-grip. Unbreakable 18/8 stainless steel interior and exterior. Heavy-duty scratch-resistant base. Keeps cold to 24 hours and keeps hot for 24 hours. Roll-stops for added stability. 5.3 In. W. x 12.5 In. H. x 5.1 In. D. Capacity 1.1 quart.