Nipple size can change throughout your breastfeeding journey, often getting smaller over time. If you sized at the hospital and are considering a Willow purchase several months into breastfeeding, it’s time to re-size.
We recommend re-sizing every three months, or anytime you order a fresh flange or insert. We also suggest re-sizing whenever you experience an unexpected change in volume or comfort, as that may indicate an incorrect flange size.