Allows for very specific sizing. It can be purchased in multiple sizes to allow room for a rider to grow or to put their hair up inside the helmet.
It fits inside the helmet and can be replaced when worn down to make the helmet feel as snug as when it was new.
Products: Ayr8 Plus, AyrBrush and Pro II Plus
Sizes: 52cm – 65cm
Round fit sizes: 56R – 59R