With this 40 ounce tumbler, that morning cup of coffee will seem endless! This product is made of stainless steel material and features double-walled vacuum insulation that keeps drinks hot for up to 12 hours and cold for up to 30. Sipping from this item is easy and comfortable thanks to the solid ergonomic handle as well as the lid and straw. You'll love this tumbler's splashproof design, straw opening to keep the straw in place, and the unique design that allows it to be stored inside 3" wide cup holders with ease. Brew up new business and order today!