These are such a popular headband style for infants! The rolled nylon is a similar fabric feel to thick tights/panty hose...super soft and perfect for newborns. Even though they measure between 3-4" across when laid flat, they easily stretch to adult size. If you choose these headbands for your bows, we will sew the bow directly to the headband regardless of the barrette type you choose (unless specified otherwise). Just let us know which headband color to use for each bow in the comments section of your order.