20oz Sublimated Skinny Tumbler. Tumbler is premium copper coated with double-wall vacuum insulation. Tumbler is made with 304 food grade Stainless Steel & a sweat-free design. Tumbler will keep your hot beverages hot for approximately 8 hours, and cold beverages cool for approximately 9 hours. This tumbler is also designed to fit into most car cup holders. This tumbler also comes with a spill-proof lid and plastic straw. All designs are made to order and will have approximately a 1-3 day turnaround time.