S/M comfort liner is for the medium shell sizes.
This bridge the gap from the XS/S helmet shell to the M/L helmet shell. But they only fit the M/L shells. So it tightens the fit on the Medium for someone that the Small is too tight, and the Medium is too loose.

Arai MX-V Stars & Stripes Motocross hjelm
6D ATR-1 Camo Helmet, XL
Arai Black
Polisport Oil Braker - 500 ML
Prox Top Gasket Set
Twin Air Filter Bolt - 48.00 MM
Arai White




