Save yourself from embarrassing, messy and disastrous spills with Mighty Mug, the mug that won't fall when knocked into, but lifts naturally when it's time to sip. Keep your drink hot or cold, for your commute and beyond with the double-wall insulated stainless steel mug. Throw Mighty Mug in your bag and relax as it is completely leak proof. Featuring an amazing 360-degree lid, enjoy drinking from anywhere on the mug. It's perfect for safe commuters who want to keep their eyes on the road and not on their drink. Vacuum sealed and copper lined insulation keeps your hot drinks hot and tasty for hours, while cold drinks stay cold until tomorrow. 100% Happiness Guarantee.