The YETI Rambler® 6 oz. Stackable Mugs are just the right size for an americano on the deck and a cortado at camp. Plus, its DuraSip™ Ceramic Lining, over-engineered firm-grip handle, and stickability make it ideal for coffee on-the-go, espresso machines, camp kitchens, and beyond. Designed to fit most espresso machine Black Rambler 6oz Espresso Mug 2 Pack