rPET Inner And Outer | Made From Post Consumer Recycled Materials | Recycled Polyester (rPET) is Obtained By Melting Down Existing Plastic Bottles And Other Material Sources To Create New Polyester Fiber | Bamboo Lid | Lid Is Not rPET | Screw On, Spill-Resistant Lid | Wide Mouth Opening | Meets FDA Requirements | BPA Free | Hand Wash Recommended