High performance - Keep drinks hot or cold for six hours inside the double wall insulated glass with stainless steel construction and 18 ozCapacity li>
Quality Engraving - Laser engraving will not scratch, peel or fadeSelect one of several professional titles with the possibility of adding a personalized monogram (three letters, script, or block) on the opposite side of the personalized tumblers li>
Spill resistance - Includes snap-on with a rubber gasket and a large slide your finger to cover the drink spout and prevent spills when not in useNon-slip rubber bottom helps keep the glass in place li>