These 20oz hot/cold tumblers have been tested alongside the most famous name brand tumbler that rhymes with the word Yeti. And it stood proud. Keeping ice for 30 hours. But if you need your cup to hold ice for 30 hours, then you’re drinking too slowly!!!! Choose your color, your text and your font, then upload your image. Comes with an upgraded spill proof lid. Great for that 12 hour tour in the squad car or ambulance, the 24 hour shift in the firehouse, or that footpost on the base or the fort!!!! Hot coffee or tea in the morning or ice cold water in the afternoon, this is your go to travel mug.