Thanks to its TriMax triple insulation technology, the Eco Vessel Boulder Triple Insulated Water Bottle can keep your coffee piping hot for up to 12 hours or your water chilled for up to 36 hours. The premium stainless steel won't retain funky flavors, and the secure screw top ensures leak-free performance.
This item really does hold up to its claims. I have had other brands of insulated bottles, but most of them have leaky drinking tops, and they do not retain the cold as well as the Eco Vessel. Another plus, the cap is like a regular water bottle so one can drink without the inevitable, annoying slurping sound of most drinking tops. One word of advice: chill your liquids first before you put them in the container. It is so well insulated that popping it into a fridge does not affect the liquid inside.
Keeps water really hot or cold for a long time. Best insulated bottle I have tried.