This luminous Milky Way bottle is the light of the Galaxy Collection, featured in a lacquered finish. Keeps your drinks cold for 24 hours, hot for 12 hours. 18/8 double-walled stainless steel, non-toxic, non-leaching and BPA free. This 17oz bottle fits in a standard sized cup-holder. Bottles do not condensate and the mouth is wide enough for ice cubes and drip-free sipping. Vacuum-sealed. S'well has teamed up with the U.S. Fund for UNICEF to help provide clean drinking water to children around the world.