Features:

• Crafted from safe, anti-bacterial, #304 stainless steel
• No plastic components
• BPA-free and will not leach toxins like plastic bottles and rings
• Internal volume markings make measuring your child's milk or other beverage a snap. Each ounce is marked and can be seen by glancing inside the bottle.
• Wide neck slow flow Pura 100% silicone medical grade nipple
• Infant bottles are compatible with wide neck nipples from Pura, ThinkBaby™, BornFree™, and Dr. Brown's™
• This bottle is designed to grow with your child; it easily converts into a sippy bottle, straw bottle, or sport bottle by changing the nipple out for a sip spout, straw spout, or sport cap (sold separately).
• Silicone travel cap included
• Lifetime warranty on stainless components