With RTICs Coffee Mug, your energy will last all day long. Built with stainless steel, double-wall vacuum insulation, this mug strikes the perfect balance between quality and comfort: Your brew will stay burning, but your hand wont. And when youre counting on coffee to carry the daythere wont be any surprises. The splash-proof lid lets you know just how much liquid you have left. Whether youre enduring a long day at the office or a long trek outside never underestimate the power of caffeine.