Tdog Sports Water Bottle Rocks

This Tdogs Water Bottle arrived in 2 days to my door. It is stainless steel and looks just like one of those "other" expensive brands.  After washing it, I put my coffee in it and left it out on the counter for the day. After 8 hours I opened the water bottle and was shocked and pleased to find that my coffee was still hot.  The next day I did the same test, this time with ice cold water, and got the same result! 

Why pay more when you can't get a quality water bottle for a fraction of the price?