Bottles feature improved nipple, which is the same shape as Mom's nursing nipple for the Perfect Fit in baby's mouth, just like Mom, so you know that your baby will love these bottles. The silicone nipple features Soft Zone that provides greater comfort for your baby as soft satiny finish conforms to baby’s palate. EASY TO HOLD - These uniquely shaped vented baby bottles are incredibly easy to hold while feeding, ensuring both you and your little one are comfortable. EASY TO CLEAN - Designed with only 3 pieces, the Baby Bottles can be easily assembled and disassembled for a quick, thorough cleaning between feedings. And because there are only a few parts, there is nothing extra to worry about misplacing. PUMP DIRECTLY INTO YOUR BABY BOTTLES - Breastfeeding and pumping can be a time consuming task and as a mother you have things to do. Pumping directly into your Baby Bottles is convenient and the Feeding baby bottles will fit onto most standard neck breast pumps.