Bow Wow Flask 20oz.
Double -Wall Vacuum Insulated: Keeps your beverage cold up to 24 hours or hot up to 8 hours and will never sweat
Premium Copper Coated: The exterior of the inner wall, in the vacuum sealed area, has been dipped in copper for added insulation. Copper reduces the transfer of temperature, adding even more insulation to your bottle.
18/8 STAINLESS STEEL: This bottle is made from premium gage 18/8 stainless steel. and will never rust or leave a bad metal taste in your mouth.This material is BPA free .