How would you like your beverage to stay cold for HOURS at a time? The McKee's 37 Double-Wall Stainless Steel Tumbler makes that impossible feat, possible! The durable high-grade, double-walled, stainless steel construction ensures that it can hold up to almost any task. Plus, the sweat-free design keeps it dry and easy to handle. This BPA-free tumbler has a shatter-proof and dishwasher-safe lid to prevent spills. It keeps drinks hot or cold longer than any conventional sports bottle.