This headband is designed to be tied & untied to adjust for sizes.
>>>Sizes<<<
Measurement is of the circumference of the headband tied.
0-3m: 13"
3-6m: 14.5"
6-12m: 16"
12-2t: 17"
3t-10 years: 18"
Adult: 20"
>>>Cleaning<<<
I recommend spot cleaning the headband by hand & letting them dry flat. Washer & dryer not recommended