The Pelican Traveler 22 oz. tumbler will keep your hot drinks hot and your cold drinks cold. It features 18/8 stainless steel double-wall vacuum insulation and copper-plated inner walls for extreme hot and cold retention. The tumbler will keep drinks hot for up to six hours and keep ice for up to 24 hours. It also has a high-polished steel base and rim, durable clear Tritanr spill-resistant lid with slide closure, and 3" diameter base that fits in most car holders.