Any tumbler that’s coming along for the ride needs to be tough enough to keep up. The YETI Rambler® 20 oz. is made from stainless steel with double-wall vacuum insulation to protect your hot or cold beverage at all costs. No freezing mornings or sweltering days will compromise your drink. Capped off with the MagSlider™ lid, this tumbler might land itself the title of man’s best friend, if that wasn’t already taken, of course.