How Much Does an Ear Piercing Cost at Claire's: Unveiled Prices! RAMBLER 20OZ TUMBLER MS WHITE. Any tumbler that's coming along for the ride needs to be tough enough to keep up. Our fan favourite Rambler 20 oz. Tumbler is made from durable stainless steel with double wall vacuum insulation to protect the temp of your beverage at all costs. Like the entire Rambler Drinkware Family, the 20 oz. Tumbler and MagSlider Lid 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, please note this magnet component is not leakproof and will not prevent spills. **CLICK AND COLLECT ONLY FOR YETI PRODUCTS NO DELIVERY**