Description At a glance, this mug might look like your everyday drinking vessel, but look again. It's loaded with top-to-bottom insulation to keep your coffee hot from the first pour to the last sip. And it's a space saver. When the lid is removed, the built-in grooves on the bottom help it stack perfectly on top of another one just like it. So whether you're storing it in the cabinets or packing it up for an adventure it one-ups the average mug. Like the entire Rambler Family, this stackable mug and included MagSlider Lid are dishwasher safe making them easy to clean, but please note the smooth-sliding magnet component is not leakproof and will not prevent spills.PRODUCT DETAILS:DISHWASHER SAFE: Because no one needs more work to do.18/8 STAINLESS STEEL: Won't crack or shatter like its ceramic predecessors.DOUBLE-WALL VACUUM INSULATION: Keeps drinks hot (or cold) to the last drop.NO SWEAT DESIGN: Prevents condensation, keeping hands dry.DURACOAT COLOR: Built for the wild, this color won't peel or crack.