Double-walled, antibacterial high-tech stainless steel water bottle (500 ml) with an extremely durable powder-coated surface, vacuum and copper coating technology for exceptionally long-lasting heat and cold retention, and a leak-proof twist-off cap. The antibacterial coating with silver ions reliably kills bacteria on the surface throughout the entire period of use. Dishwasher-safe. Material: Stainless steel 500 ml, double-walled, vacuum insulation, copper-coated, powder-coated, leak-proof, dishwasher-safe, antibacterial, pack size 25, designer box.