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