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 | Silicone Ring Is Not rPET | Smooth Rubberized Finish | Carabiner Clip For Attachment | Wide Mouth Opening Recycled PP Inner Lid And Spill-Resistant Outer Cap With Easy Carry Handle | Meets FDA Requirements | BPA Free | Hand Wash Recommended