My mom had some old cups that were made of some type of metal that would almost put a frost around the cup if you put ice in it… they were great but they were solid so it would freeze your hand while you drank from it…. how ever the coldest water cup has a thick plastic case around it and that’s not an issue… same result as my mother’s old cups this will keep your liquid almost ice temperature no joke…. so if you have sensitive teeth you may not wanna put to much ice in it..
I love it tho I only drink milk cold and this cup will keep it cold longer… not that I let it sit for that long but if I have to change the baby and forget it is there it will cold long after

Review by on April 27, 2016