I have used this bottle for kayaking, biking, hiking, and for a recent outdoor SWAT practice. It kept the ice and water inside colder a lot longer than a plain non-insulated bottle, or even a chilled/iced manufacturers bottle of water/Gatorade...and it doesn't sweat on the outside like those other options. I definitely recommend the Insulated Polar Bottle to anyone who plans to use a water bottle
This review was written in the old system and had content requirements that are different than reviews written today.