Award winning 9oz Insulated Kiki sippy bottle is 100% plastic-free, environmentally progressive, and adapts to the needs of your growing child. Both the bottle and collar are crafted from safe, high grade #304 stainless steel and our XL Sipper Spout™ is made from medical grade silicone. With Pura, you can be sure you are getting the safest bottle on the market (BPA/BPS-free and MadeSafe Certified).