When the I/O was created, a new category was invented. As the original interchangeable goggle, the I/O is the standard by which all other goggles are measured.
|Frame Size||Medium||Frame Colour||Acid Prism||Lens Shape||Spherical - Carbonic X Lens|
|Light Conditions||Sunny + Partly Cloudy||Lens Tint & VLT %||Green Sol-X Mirror (12% VLT)||Helmet Compatible||Yes|
|Over the Glass||No||Lens Change||Easy (Quick Release)||Additional Lenses||Ignitor Mirror (35% VLT)|
|Polarized||No||Venting||Medium||Includes||Microfiber Goggle Bag with replacement lens sleeve|
|Frame Features||Responsive Fit Frame Design, 3-Layer DriWix Face Foam||Other Features||5X Anti Fog, Ultra-Wide Silicone Backed Strap, Porex Filter|