What can we say about the best-selling headband of all time?! The design of the KNOT appeals to everyone because of its simplicity. It is so easy to dress up or keep casual. It can survive the bottom of a diaper bag like not many other pretty things can. The KNOT is ONE SIZE FITS ALL, it can fit a newborn baby all the way up to an adult! The headbands are so soft and stretchy they are designed to grow with your rapidly growing babe.