Easy attachment. 100% UV protection. Shatter -proof polycarbonate lens. Scratch resistant lens. Excellent vision. Exceeds ANSI Z-87.1 standards. Made in the USA. Black Frame / Gray Polarized Lens. Warnings: These glasses are not to be worn as safety glasses. Any severe blow to the sung lasses even one which does not cause visible damage should be cause for re placement of the sung lasses. Failure to do so may result in permanent damage to the eyes.