The YETI Rambler 14 oz Mug is the toughest, most over-engineered camp mug out there, because your hard-earned warm mug of chili after a long day deserves nothing less. 18/8 stainless steel keeps contents hot (or cold) and hands protected. Find a color that calls to you – the mugs are available in stainless steel, and in DuraCoat Color. The mug comes with the standard Rambler 30 oz Lid but is also compatible with the Rambler 30 oz MagSlider Lid. Important: Do not place mug over external heat source or open flame. Vacuum seal or other damage may occur. Made with kitchen-grade stainless steel, so they’re puncture- and rust-resistant.Keeps cold drinks cold and hot drinks hot until the last sip.Dishwasher Safe