Antimicrobial 17 oz Vacuum Insulated Double Wall Stainless Steel Cola Bottle construction to keep your drinks at the perfect temperature with this handy, 17oz Insulated Cola Bottle. Double-wall stainless steel with vacuum insulation. Copper lining. Keeps drinks hot for 12 hours or cold for 24 hours. Stainless steel outer, stainless steel inner. This drinkware features an antimicrobial additive that prevents the growth and spread of bacteria on the lid & exterior.