The revolutionary air-free feeding design of our NURSH™ Silicone Pouch Bottle feature 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. Silicone pouches are reusable. Includes 3 pouches only, bottle sold separately.