Keep the cold cold, and the hot hot. YETI 30 oz. Rambler® Tumbler travel cups are the ultimate drinking vessel at home, on the boat, or pretty much wherever you go. Constructed from durable kitchen-grade stainless steel for exceptional durability. A double-walled vacuum design keeps your coffee hot, and your iced drinks cold for twice as long as conventional plastic tumblers. They come standard with our YETI MagSlider Lid, the only drink lid that harnesses the power of magnets to keep your sodas or suds on lock. 18/8 stainless steel. A clear, shatter-resistant BPA lid lets you see when you need a refill. Dishwasher-safe. Imported.