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 | Lid And Straw Are Not rPET | Recycled PP Lid And Silicone Straw Material | Screw On, Spill-Resistant Sip Top Lid | Easy Carry Handle | Meets FDA Requirements | BPA Free  | Hand Wash Recommended