Customized Tumblers & Travel Mugs, Frosty 18 oz Double Wall Steel Tumbler Cooler - Dual Function, The Frosty is a double function, double wall 18oz stainless steel tumbler and can cooler. The tumbler lid features a spill-proof sliding closure and is ideal for hot or cold drinks. Swap the black can holder lid from the base with the slider lid and keep your canned drinks colder for longer. Fits in most car cup holders. ... #KM7402 $15.27/each.