Flat Black Mini Thermos 12 Ounce, Vacuum Seal Technology, Stainless Steel Sleek and Modern design yet durable and strong. Vacuum seal technology keeps up to 12 ounces secure while retaining its tempature Full Stainless Steel interior and a grippy rubbery outside combine strength and grip into one thermos Great for Hiking, Hunting, Biking, Skiing, Running, and fits into most cupholders including car and boat cupholders Included Strainer allows for this thermos to work as a Martini Shaker.