The Lifefactory 8-Ounce Stainless-Steel Vacuum-Insulated Wide-Neck Baby Bottle is designed for convenience and safety. This bottle features a wide neck for easy filling and cleaning, and is made from durable stainless steel with vacuum insulation technology to keep contents cold for up to 6 hours. It includes a Stage 2 silicone nipple, polypropylene cap, ring, and stopper, ensuring a natural feeding experience. The bottle is dishwasher safe and BPA-free, meeting FDA standards, and is made in the USA and China.