Much lighter color compared to the brown one and you need the extra lid to drink directly

1.5 months of use. I have only used it for cold drinks/water for now and it does indeed keep them cold for many hours, while it can keep them cool for 24 hours depending on how cold they were initially. The thermos has a capacity of 0.62 liters and has a diameter of approximately 7cm at its base. My experience is that it doesn't always fit in a cup holder, but it closes satisfactorily without any leaks, so there is no major issue.