This tumbler has a double-wall, vacuum-sealed stainless-steel construction, keeping drinks hot for up to 6 hours and cold for up to 12 hours. A clear plastic snap-on, spill-resistant lid and clear straw complete the design. • Dual Temperature: Hot for 6 hours, cold for 12 hours. • Easy Sipping: Included clear straw. • Premium Quality: Vacuum-sealed stainless steel construction.