Meets ASTM F803 impact standards for basketball, and all  racquetball sports. Includes 3 interchangeable lenses for varying light conditions: Clear, Amber and Smoke.  Optically correct lenses eliminate distortion..  Enhanced peripheral vision.  Maximum airflow prevents fogging.  Telescoping temple for custom fit.  Adjustable Velcro retentions strap for secure fit (removable).  Protective carrying pouch doubles as a micro-fiber cleaning cloth.  100% UV protection.  Shatter resistant lenses.  No prescription available.