Check out our redesigned 30oz double wall 18/8 stainless steel thermal tumblers! These Shunk Gulley 30A tumblers have copper vacuum insulation, a clear push-on lid, and powder coated finish. Our CeCe brand 30oz stainless tumblers are available in white or navy, and will keep your beverages cold for 24hrs, or hot for 8hrs. Not dishwasher safe, please hand wash only.