I used it a long time ago. It has been improved than before.
Plastic can also be light, but metal is still sturdy.
However, since Arai now has a snap button, it will not fit smoothly.
I thought about various things and cut off buttons.
It is a good feeling to add with a cut. I purchased items from other manufacturers before, but it was hard to settle. Although it depends on the model, but the clip of the chin strap of SHOEI comes off as it slides it was easy to install.