Uvex S3163 Ambient OTG Safety Eyewear, Medium Blue Frame, Shade 3.0 Ultra-Dura Hardcoat Lens Offered in two lens sizes to fit a variety of users and prescription eyewear styles Economical and easy lens replacement allows multiple tints and extends the life of the eyewear Soft, flexible nasal fingers conform to a variety of facial profiles and minimize slippage Available in a variety of lens tint options Highest available impact protection certified to ANSI Z87.1-2003, CSA Z94.3 and Military Vo Ballistic test for impact (7 times greater than ANSI)