The 0-3 month Flexy Pacifiers have a softer nipple for those early newborn stages. It is as soft as skin, and the silicone is so flexible that it elongates comfortably for newborns, to help prevent nipple confusion.
Our new Active Flexy Pacifier is for babies 4m+, has a firmer nipple, and features large side vents that create additional air flow. For increasingly active babies that are learning to crawl and walk (while also heavily teething), parents may prefer this open design to prevent saliva build up.