Made Without BPA or PVCAir-Free Feeding with Collapsible PouchMilk Only Contacts 100% Silicone Nipple and PouchSilicone Pouch BottleNo Complicated Valves or Vents Air-Free Feeding Silicone pouch collapses as baby drinks without complicated straws, valves and vents. Safety of Silicone The only thing your milk comes in contact with is 100% silicone. Modeled After Mom Optimal nipple shape and length for a perfect latch. Simple Clean Up Four simple pieces (not including the cap) make cleaning and assembly a snap. Innovation. Suck on that. It’s the best thing to happen to feeding since nipples. The revolutionary air-free feeding design of our NURSH™ Silicone Pouch Bottle features a 100% silicone pouch that collapses as your little one drinks, squeezing out the nasty gas-inducing air that causes colic. No straws, vents or valves here—so it’s a snap to clean and assemble. The silicone can even be boiled, sterilized, microwaved, and frozen.