Answer
Nov 15, 2022 - 09:08 AM
Hello. There is a 2" wide Vecro adjustable strap at the back and it should accommodate head sizes up to about 26" around or so. Probably a little bit more, but that's about the maximum.
I hope that this helps but please let us know if you have any questions at all: 1-800-783-8326 or cyclewear@aerotechdesigns.com.
Thanks!