Keep your beverages at optimal temperature during everyday activities or outdoor pursuits with the Ecovessel Aspen 473ml Flask. This functional, good-looking bottle features TriMax Tripple Insulation, which keeps drinks cold for up to 80 hours and hot for up to 16 hours—entirely condensation-free.

It has a non-slip soft landing silicone base and internal threading for quick opening and closing, is ice cube and cup holder friendly, and is covered by a limited 100-year warranty.