All of our hats feature an adjustable slider, but head sizes do vary. Here are our suggested sizes by age:
Infant: Best fits kids aged 8 to 36 months and measures 46 to 50 cm.
Toddler/Preschooler: Best fits kids aged 3 to 6 years and measures 50 to 54 cm.
If you don't have a soft measuring tape, you can measure a hat that currently fits your child's head with a piece of string, or by placing the string around the child's head comfortably across the forehead and just above the ears. Use a ruler or measuring tape to then measure the string.
Big Kid and Adult sizes coming soon!