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 Maze Helmet
Arai White
Arai Black
Arai MX-V Stars & Stripes Motocross hjelm
Twin Air Filter Bolt - 70.00 MM
Bolt Rotor Bolts Honda
Bolt Full Plastic Fastener Kit
Bolt KXF Track Pack 6-kit - KX/KXF Style
Twin Air Filter Bolt - 84.00 MM
Twin Air Disp. Rubber Glove
Twin Air Miljømåtte - 160 X 100 CM
Moto Pro Roter Bolt Kit F/R
X-Trig Flexfix Kit M12 - 28.60 MM
X-Trig Mounting Kit M12 - 22.00 MM
X-Trig PHDS Kit for 22mm Handlebar - 22.00 MM




