Pura's feeding systems are not only the safest in the world (plastic free!), but their Natural Vent Nipple™ was designed to mimic the variable flow rate of breastfeeding. Sold as a 3 pack These new nipples, designed over the past year by the Pura team, employ a new shape that promotes a better seal between the baby and the nipple, an elongated vent to reduce colic and spit-ups, and the use of multiple holes in the tip to achieve different flow rates. Other reasons these nipples are the Good Stuff:

• Two flow rates — slow or fast.
• Elongated vent helps reduce spit-ups and colic
• 100% plastic free infant nipple crafted from medical grade silicone
• Each pack contains two Natural Vent Nipples of the same flow rate
• Meets all FDA, CPSC, EN14350, European Commission 10/2011, German LFGB regulations and/or guidelines
• Patent pending design