Leave spills behind and keep the adventures coming with the hefty YETI Rambler 30 oz. Travel Straw Mug. Its quick flip straw is 100% leakproof while closed and is easy to sip when open. Holstered in a cup holder, tossed in a tote, or packed in a duffel, your water is sure to stay in its place. And with several possible lid positions, it's great for righties and lefties. Like the rest of the YETI Rambler drinkware lineup, this mug is overengineered and double wall vacuum insulated to keep your drink cold until the last sip. Plus, the mug and lid are dishwasher safe for easy cleaning. Please note, do not use the Rambler Travel Straw Mug with hot, carbonated or pulp beverages, or for storage of food or perishables.