Fitting in most cupholders, the Rambler 30 oz. is the tumbler that gets you through the day. Your morning brew will stay hot or your iced coffee will stay cold - so take your time. Kitchen-grade stainless steel with double-wall vacuum insulation work together protect your drink at all costs. Like the entire Rambler Drinkware Family, the 30 oz. Tumbler and MagSlider Lid are dishwater-safe for easy cleaning. The magnet on the included MagSlider Lid adds an additional barrier of protection for keeping drinks contained and preventing heat or cold from escaping.