Convenient travel mug allows you to take your drink with you and keeps it hot for one hour or cold for several hours. Tumbler stays cool to the touch with hot liquids and condensation-free with cold liquids. Double-wall vacuum insulation locks in temperature and preserves flavor and freshness. Lightweight and virtually unbreakable, stainless steel mug has a twist on lid to helps protect your beverage from spills. Stopper twists tight to prevent leakage. Comfort-grip handle features soft rubber inset.