18/8 Stainless Lined Thermal Coffee Mug - Insulated Double Wall - 16oz. Capacity - Black Thermal Mug Travel Companion with Lid. Keep your liquids warm & secure on the go. Color Acrylic Exterior, 18/8 Stainless Steel Inner Lining, Foam Insulation in-between the Double Wall body. Press Fit Lid with Stainless Drink Rim, Sealable Sliding Tab Closure, & Silicone Gasket Seal. BPA Free For Hot or Cold Beverages. Enjoy 4 hrs. Cool / 2 hrs. Warm. Hand wash. (dishwasher temperatures & abrasiveness vary) Not for microwave or freeezer use.