The Boon NURSH 8oz Bottle 3pk in Pink Multi is designed to provide an innovative feeding experience for infants. The silicone pouches collapse as the baby drinks, reducing the ingestion of air and decreasing the likelihood of painful gas, reflux, colic, and burps. The bottles do not require straws, vents, or valves, which allows for a more natural feeding experience. Modeled after the natural form and feel of a mother's breast, these bottles are easy for babies to latch onto and encourage proper tongue positioning. Made from silicone and polypropylene, they are free from PVC, phthalates, and BPA. The bottles are safe to microwave, boil, freeze, and sterilize, and are also dishwasher safe.