Three Tumblers That Will Make It Around The World And Back

When you're out on vacation, a set of insulated tumblers can keep your drink the perfect temperature, while letting you leave the disposable cups on that stack behind the counter where they belong. Here's what to look for when bringing your own drinkware.

Pick tumblers with stainless steel interiors. Because it's corrosion-resistant and doesn't need any sort of coating, stainless steel won't leave behind any odors, impart any unwanted metallic tastes into your drink, and can stand up to even the most acidic and salty drinks you pour into it. It's also easy to clean with soap and water, useful for when you may not have a dishwasher handy.

Choose double-walled insulation. "Double walled" means there are two steel walls with a vacuum in between. Your drink loses its cool through molecular motion; the molecules of a cold drink, for example, will start being jostled by the molecules of the warm air around it, and the more and faster those molecules move, the less pleasant your drink becomes. A vacuum means there's no molecules to jostle, which means you can sip for much longer.

Don't forget about the lid! The bad old days of weird slots and awkward sipping has been left behind, and modern tumblers have all sorts of different lids with different functions. Like a straw with your drink? Look for lids with straw holes, or built-in ones. Want to keep your drink sealed when the wind kicks up? A sliding lid will keep it sealed.