Improve your odds with this eyewear that is both convertible and interchangeable, making it ideal for use on and off the road. Two sets of removable foam are included for extra protection and comfort. In addition, an adjustable strap converts from sunglass to goggle, while three sets of polycarbonate lenses create smooth transitions for clarity from sunrise to sunset. Compliance: CE, EN-1836:2005/A1:2007, EN 166 high speed impact at 45m/s in extreme temperatures. *Please note that while these glasses would presumably pass ANSI Z87.1-2010 standards, they are NOT certified, and are therefore not endorsed as safety eyewear by Safety Glasses USA.