How to switch lenses on Oakley Airbrake Goggles

Tech Specs:

Frame Material:

O Matter (urethane) 

Polarized Lens:

no 

Helmet Compatible:

yes 

Eyeglass Compatible:

no 

Ventilation:

dual ventilation 

Face Size:

medium to large 

Grip Strap:

yes 

Recommended Use:

skiing, snowboarding 

Manufacturer Warranty:

1 year