The YETI Rambler 14oz mug is unlike traditional camp mugs. It features double-wall vacuum insulation that protects hands from hot or cold contents while keeping your coffee hot. Like all Rambler drinkware, the mug and lid are dishwasher safe. Made with kitchen-grade stainless steel, so they are puncture and rust-resistant. Features a 360-degree welded handle that allows for a firm grip.