Product Overview: YETI Rambler Lowball The seamlessly transitions from morning to evening. By day, it'll keep your coffee or tea piping hot far longer than a traditional mug. By night, it will preserve the iciness of four fingers of bourbon or a mixed drink for hours. Features: The Rambler Lowball is made from 18/8 food-grade stainless steel, giving you all the strength you want in a drinking vessel, with none of that unwanted metallic taste. The no-sweat design keeps your hand protected from burns and frostbite while significantly reducing your coaster budget. Want to take your drink on an excursion? Add a Rambler lid to prevent from sloshing your precious cargo.