Taking advantage of the same reflective insulation technology as the original Polar Bottle Sport, the Polar Bottle Ergo keeps water cold more than twice as long as a conventional water bottle. As with all Polar Bottle water bottles, the Polar Bottle Ergo comes in a variety of graphic design options to compliment your personality. With its functional and aesthetically pleasing design, the Polar Bottle Ergo is the perfect bottle to carry with you 24/7.