Four sizes: Ultra Mini, Mini, Standard or OTG (Over The Glasses) - All with clear outer edges.
Flex-Z goggles are extremely durable, scratch and crack-resistant with a soft, comfortable rim.
They are made from a remarkable material that makes them pliable and form-fitting, making them extremely comfortable to wear.
Strong enough to survive being sat on or thrown in the bottom of your rig bag, they don't crack like polycarbonate lenses!
Of the two images shown, the single goggles are the MINI variety, the most popular type.