20 Oz. Stainless steel double wall bottle. Vacuum sealed 18/88 SS liner with copper coating for maximum insulation. Its screw-top, tethered, stainless lid keeps drinks hot for 12 hours and cold for 24, and provides sturdy loop to carry or clip. Powder coated outer shell. BPA free. Meets FDA requirements. Hand wash recommended. Additional laser engraved imprint options available at 2W"x3H" or 3.5W"x3H".