A motorcycle goggle's main function is to keep wind, dust and airborne particles out of your eyes. During their service, even good goggles like our Moto 2.0 will show wear. Straps will stretch and fray. Eye port foam will get dirty and tear. Lenses will scratch, or their anti-fog function will diminish. If the lens in your Moto 2.0 goggle becomes damaged in any way, replace it immediately. NEVER clean motorcycle goggles in a washer and dryer. Instead, remove the lens and clean it and the goggle frame with mild soapy water and a microfiber cloth. Next, pat the goggle dry with a soft towel. Let the frame and strap assembly air dry 24 hours before installing the lens.