When Smith created the I/O, they invented a category. As the original interchangeable goggle, the I/O is the standard by which all other goggles are measured. Goggle Features
Fit: Medium Fit Quick Release Lens System Spherical, Carbonic-X Lens with TLT Optics Patented Vaporator Lens Technology with Porex© Filter Helmet Compatible Quick Fit Strap Adjustment System with Clip Buckle Ultra-Wide, Silicone Backed Strap 3-Layer Dri Wix Face Foam
Includes:: Microfiber Goggle Bag with Replacement Lens Sleeve
Includes:: Two Performance Mirror Lenses Ignitor Mirror Proprietary universal lens tint designed to reduce eye fatigue while enhancing contrast & depth perception in all conditions. A versatile lens tint designed to be used all season long. Light transmission of 35% for mixed conditions. Category S2 Red Sensor Light rose base lens tint with a multi-layer red mirror maximizes color definition & increases depth perception in varying levels of flat light conditions. Light transmission of 55% for low to medium light conditions Category S1