Recycled Stainless Steel Inner And Outer. Double Wall Construction For Insulation Of Hot Or Cold Liquids. Vacuum Insulated. Capacity Is 22 Oz. With Lid On. Snap On, Spill-Resistant Recycled PP Lid with Straw Hole and 9 ½" Recycled PP Straw. Powder Coated Finish. Non-Slip Bottom. Tone-On-Tone Look With Matching Lid, Straw And Tumbler. Meets FDA Requirements. BPA Free. Hand Wash Recommended.