Inspired by rimless eyewear and a need for a quick interchangeable lens system the I/O was born a few seasons ago. Since that time the sleek rimless design has roots as the go to goggle for many skiers. With a medium frame the I/O fits a huge variety of faces and because of the rimless design gives a huge field of vision given the frame size. With goggles form has to follow function and the I/O does not disappoint. Dual Layer DriWix Face Foam makes for a comfortable fit all day and the QuickFit strap with the clip buckle make adjustment and putting your goggle on a cinch. However where the I/O really shines is in the lens department, using spherical Carbonic-X lens with TLT optics to eliminate distortion and increase scratch resistant. To fight off fogging Vaporator technology and the Porex filter keep moisture out by creating the world's strongest thermal barrier. Then not only does the I/O get a super easy to use interchangeable lens system but they give you two premium mirrored lens to ensure you will always have the right lens for the light conditions. Never be caught out with the wrong goggle without having to own multiple pairs with the I/O.