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 to protect your drink at all costs. Like the entire Rambler Drinkware Family, the 30 oz. Tumbler and Stronghold Lid are dishwasher-safe for easy cleaning.