Thermos Stainless King 16-Ounce Travel Tumbler 2-PACK (Silver/Midnight Blue) Thermos vacuum insulation technology for maximum temperature retention, hot or cold; keeps liquids hot for 7 hours and cold for 18 hours Durable stainless steel interior and exterior Cool to the touch with hot liquids, sweat proof with cold Built in tea hook, easily holds tea bags or most loose leaf infusers Fits most automobile cup holders; Capacity 16 Ounce