18 Oz. Stainless steel double wall bottle. Vacuum sealed 18/88 SS liner with copper coating for maximum insulation. Keeps drinks hot for 12 hours, and cold for up to 24 hours. Its screw-top lid has a flip open, snap-tight spout which prevents unwanted spills and maintains beverage temperature. Powder coated outer shell. Hand wash recommended. Additional digital full color or laser engraved imprint options available at 2"Wx4"H or as a seamless full wrap at 8.75"Wx4"H.