Most insulated tumblers also prevent condensation (or "sweating"), have locking lids that are either leakproof or splashproof, and fit in most cupholders to make it easier to bring your drink on the road. They are often versatile, too—not only will you be able to savor your hot tea or cold brew at its optimal temperature, but also wine and beer. So, we put several top-rated … [Read more...]