These double-walled, insulated reusable water bottles will keep your water cold for hours–without leaching of toxic chemicals. They are constructed of low density polyethylene (LDPE): a durable, lightweight, FDA food grade approved material that does not contain Bisphenol-A. Made in the USA. Has a wide mouth so it’s easy to add ice cubes, and a “sport” top to make it easy to drink. Comes in a rainbow of cool colors, and is dishwasher safe (so you can sanitize it between uses).