A range of replacement lenses, roll-offs, tear-offs, outriggers etc are available for the Oakley Airbrake MX goggles.
The Replacement Mud-Flap for the Race Ready Airbrake has a 4mm overlap of the film, whereas the one that comes standard with the Race-Ready goggles is 2mm.
Oakley is continually upgrading and making improvements on this market leading goggle.
The replacement film has been having a running upgrade, which makes it stronger.
As well as replacement foam being available, Oakley also do a "Sand Accessory Kit" and a "Snow Accessory Kit", both of which use closed cell vent foam for the Airbrake goggles.