Instead of sizing by age, my bonnet sizes reflect an ear to ear measurement to best fit your little one. Measure from the cheek just in front of the ear around the back of the head to the same spot on the other side of the face - this measurement will guide your size selection.
Measurements are APPROXIMATE and vary from bonnet to bonnet as all items are handmade by me.
If you are unsure of fit please send me a message either via contact here or on my Instagram and I am happy to provide an exact measurement.
Small: 10-11 inches
Medium: 12-13 inches
Large: 14-14.5 inches
Jess style runs a bit smaller than other bonnets - if your child is on the edge please size up for a better fit.
If you are ordering for a child whos head is smaller or larger than these guidelines I am happy to make a custom sized bonnet for you based on measurements/request.