Vacuum insulation keeps drinks hot 2. 5 hours, cold 4. 5 hours, or iced 20 hours 18/8 stainless steel won't rust; naturally BPA-free Leak-resistant flip lid Integrated D-ring lets you clip to packs Dishwasher safe; Lifetime You try to tell your cold hands not to spill hot coffee in the morning, but your brain is still asleep in your bed or tent. The splash-proof lid and big, friendly handle on the Stanley Classic Vacuum Camp Mug help keep the coffee-to-lap ratio slim. Stanley made the Classic Mug with durable, high-quality polycarbonate for the top, and a double-wall insulated steel body.