Triple Insulated Recycled Stainless Steel Outer And Copper Inner | Powder Coated Finish | Double Wall Construction For Insulation Of Hot Or Cold Liquids | Screw On, Spill-Resistant Lid With Easy Carry Handle | Push Top Button To Release And Open The Lid. Press Down To Lock Back In Place | Dual Wide Mouth Openings | Non-Slip Base | Features Signature Cutter & Buck Logo | Meets FDA Requirements | BPA Free | Hand Wash Recommended