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.

6D ATR-1 Camo Helmet, XL
Arai MX-V Stars & Stripes Motocross hjelm
Maxima Corporate T-Shirt
Arai Black
100% Women's Sprint Tech Tee
100% Essential Tee
Arai White




