For morning coffees, afternoon teas, beer gardens, home brews, and hearty cheers. From AM to PM, no other tumbler works harder than the YETI Rambler 24 oz Mug with Ceramic Lining. Loved by many, this fan favorite mug is insulated, sturdy, and durable. Features DURASIP(TM) CERAMIC LINING - Savor every sip with a no-mess interior made for easy clean ups. 18/8 STAINLESS STEEL: Made with kitchen-grade steel, so it's puncture and rust-resistant. DOUBLE-WALL VACUUM INSULATION - Keeps cold drinks cold and hot drinks hot until the last sip. DISHWASHER SAFE - Because no one needs more work to do. 360-Degree Welded Handle - For firm grip on your beverage that won't break if it hits the rocks. Additional Details: Do not place mug over external heat source or open flame. Vacuum seal or other damage may occur. This mag slider is not leakproof and will not prevent spills.