Refresh the interior of your helmet with the FXR Helium Alpha MX Helmet Liner. Designed as a direct replacement for the original liner, it helps restore the comfortable, performance-focused fit of your helmet for long days on the track or trail. The hygienically treated, moisture-wicking construction helps manage sweat and interior moisture during demanding rides. Fully removable and washable, the liner makes regular cleaning simple while helping keep your Helium Alpha MX Helmet feeling fresh ride after ride.