90% of Moms Recommended Simply Closest to Mom's Breast Simply the Best Way to Combine Breast & Bottle Multiple Nipple Holes Just Like Mom Advanced Anti-Colic Air System Same Shape as Mom's Nursing Nipple BPA Free Natural Feeding Support System Maintains bond with baby by providing close-to-Mom feel for an easy transition between breast and bottle. Flows - Multiple nipple holes, just like Mom, for a comfortable & natural feed Looks - Same shape as Mom's nipple during breastfeeding for the perfect fit Works - Wide & flexible nipple moves with baby for a comfortable latch Advanced Anti-Colic Air System - Built-in 1 piece vent helps reduce colic, gas & spit-up by allowing baby to swallow liquid, not air.