Savour those day-saving espresso shots with a tumbler primed for the job The Rambler® 295 ml / 10 oz. Tumbler. Its condensed stature holds just enough for just about anywhere. And yep, it can hold your drink's temp just as well as any Rambler Drinkware out there. YETI also went ahead and topped this coffee cup off with our fan-favourite, splash-resistant, smooth-sliding MagSlider Lid to protect your drink from any free-flying liquid, because surprise speed bumps are very real.