This is something I own and it is a great. I love this thing! It work just as good as any other brand and is super cheap. You can keep your beverage at the ideal temperature for hours. I take this with me whether I am camping, headed to work, or just hanging around the house.
I prefer the stainless steel, but they come in different colors. I have owned the off white one but it chipped. This 20 oz tumbler is made with high-grade 18/8 stainless steel and is double-walled for maximum temperature control. Ozark Trail is becoming one of my favorite brands! If this is something you crave get it for less than $10!