The Outwell Wilbur Vacuum Flask M is a stainless steel thermos designed for outdoor use, offering a reliable way to keep beverages hot or cold during camping trips, hikes or even everyday commutes.
With a 0.75-litre capacity and a slim 29.5 x 8 cm profile, this flask strikes a balance between ample drink volume and easy packability. The stainless steel construction stands up to knocks and resists corrosion, while the smooth finish makes it simple to rinse out and maintain.
Thanks to its vacuum insulation—where a double-wall design removes air to reduce heat transfer—the flask helps preserve your drink’s temperature for extended periods. By limiting conduction and convection, it keeps hot drinks warm and cold drinks cool better than a single-wall bottle.