Good Morning. Thank you for your email asking my opinion about the product. I honestly have not been satisfied. The bottle does not keep the cold liquid for long (with ice inside), although the warm-up time is less than any bottle, it is not true that it lasts all day cold. On the other hand, the smell of metal that gives off the bottle when it comes to drinking water, is quite strong. As unpleasant. My final decision was to put the bottle Chilly's on a table, adornment, because that if, it is pretty in appearance. A cordial greeting and I hope to improve the product through its manufacturers. Thank you.