This 20 oz tumbler is crafted from durable 18/8 vacuum-insulated, copper-lined stainless steel to keep drinks hot for up to 8 hours or cold for up to 24. Its tapered shape fits most standard auto cup holders for easy portability. The shatter-resistant screw-on acrylic lid features a slide closure that matches the tumbler body and is secured with a leak-proof silicone gasket. A wide mouth allows for easy filling with ice or other ingredients, while the sweat-free powder-coated exterior ensures a secure grip. The tumbler also includes a stylish stainless steel base, is BPA-free, top-rack dishwasher safe, and comes packaged in a kraft gift box.