The thermos brand 22 ounce vacuum insulated stainless steel mug features thermos vacuum insulation technology for maximum temperature retention that will keep your hot drinks hot for up to 6 hours and your cold drinks cold for up to 10 hours. A one-piece, integrated lid and handle makes attaching or removing the lid more convenient. The handle is ergonomically-designed for a comfortable grip. The stainless steel interior and exterior is highly durable and the sweat-proof design prevents water rings from forming. The flip-up lid is easy to use and clean. Dishwasher safe.