Pyramex V2G Glasses / Goggles easily convert from goggles to glasses and back with their interchangeable temples and headband. The Pyramex V2G headband features ratchet adjustment for a perfect fit. These Pyramex Safety Glasses feature foam padding that forms a perfect seal to keep out dust and airborne particles when you're on the road or in the field. The safety goggles headband features a quick fit retainer. The Pyramex V2-G Goggles/Glasses exceed the ANSI Z87.1-2003 High Velocity Impact Standards, are CE EN 166 Certified and meet CAN/CSA Z94.3-07. These convertible goggles aren't just for the lab - they make great motorcycle goggles, road goggles, and more!