he YETI Rambler Tumbler 20oz in Charcoal is made with kitchen-grade stainless steel and double-wall vacuum insulated and come with a lid. This tumbler keeps ice 2 times longer than a plastic tumbler and is designed for maximum ice retention. This tumbler works for hot beverages as well. This YETI Rambler Tumbler is BPA free and features No Sweat design. It comes with the dishwasher safe and shatter resistant YETI MagSlider lid. This lid uses the power of magnets to keep your drinks locked in and for smooth opening and closing.