Customize the MX O FRAME® goggle with a dark grey lens color and choose the best optics for your environment. This single lens option is made of optically pure LEXAN® for durable impact resistance and 100% UV filtering. Lens fits MX O FRAME®, MX PRO FRAME® and H2O FRAME. Note: Use care when installing / removing accessory lenses. Scratched lenses can not be returned and are not covered under Oakley's warranty policy.