Crafted with the highest quality materials, this tumbler is built to last. The stainless steel exterior not only adds a touch of elegance, but also ensures durability and longevity. The double wall construction provides excellent insulation, keeping your coffee hot for longer periods of time. But that's not all - this mug also features a plastic interior, which not only adds an extra layer of insulation, but also prevents any unwanted metallic taste. With a generous 40oz capacity, this tumbler allows you to enjoy your favorite hot or cold beverages for extended periods without the need for constant refills. The plastic interior also makes cleaning a breeze, as it is resistant to stains and odors.One of the standout features of this tumbler is its convenient handle. Not only is this tumbler practical and stylish, but it is also eco-friendly. Upgrade your coffee routine with this stylish and practical mug today!