18/8 Stainless Thermal Travel Coffee Mug - Vacuum Insulated Double Wall - 16oz. Capacity - Black Solid 18/8 Stainless Construction Thermal Mug with Lid. Enjoy Longer Thermos-Like Insulation for you Beverage. Stainless Steel Inside & Out, Vacuum Insulated between the Double Wall body. Screw On Threaded Lid with Large Drink Rim, Solid Secure Snap to Seal Drink Tab, & Double Lip Silicone Gasket Seal. BPA Free For Long Durations of Hot or Cold Beverage Insualtion. Enjoy 12 hrs. Cool / 6 hrs. Warm. Hand Wash Recommended. (dishwasher temperatures & abrasiveness vary) Not for microwave or freeezer use.