Stainless steel outer and inner. Double wall construction for insulation of hot or cold liquids. Screw on, spill resistant lid. Silicone easy carry handle. Meets FDA requirements. Hand wash recommended. Powder coated finish. Vacuum insulated. Dual opening top for easy cleaning. Wide mouth opening. BPA free.Item Size: 10 HImprint Area: One Side: 2 1/2 W x 4 H ^ Wraparound: 5 W x 4 H