Don't head out on your outdoor adventures without this 18 Oz. Stainless Tumbler with Silicone Grip. This tumbler features a stainless steel outer lining and an inside made of plastic inner lining. This tumbler can hold both your hot or cold drinks. It comes with a silicone grip for comfortability. Don't worry on its safety because this product is F-D-A approved and BPA-free. Quench your thirst now!