Isolerflaska Ellipse 500 ml | 17 oz - Klar lila

I took it on a weekend trip and it kept my coffee steaming hot for a solid 8 hours. The 500 ml size is just right for a day out, and it handles carbonated drinks without any issues.

The mauve color is even prettier in person, and I love that I can toss it in my bag for hiking without worrying about leaks. My coffee was still pleasantly warm after a full day out, which the 12-hour claim actually lived up to.

Left it in the car overnight with iced coffee and it was still properly cold the next afternoon, so the 24-hour claim isn't just marketing. The bottle fits nicely in a cup holder too, which is rare for 500 ml sizes. I've been using it daily for a week and there's zero condensation on the outside.