With the VACUUM TUMBLER drinking cup from the GO SERIES with the innovative CERAMIVAC coating, the American brand STANLEY is once again underscoring its pioneering role in new technologies. A drinking cup made of 18/8 stainless steel arose from the consumer need for a ceramic coating, the unbreakable CERAMIVAC inner coating of which is pulled over the rim of the cup. This means that when you drink it feels like you are drinking from a ceramic cup, and at the same time Ceramivac can be cleaned without leaving any residue. The GO SERIES VACUUM TUMBLER with its vacuum insulation keeps drinks hot for up to 4 hours and cold for up to 7 hours. With a volume of 473 ml, it is sufficiently large and the removable lid made of unbreakable Tritan plastic is transparent so that you can see the contents.