-PC anti-fog lens- -Anti-UV -Silicone mask and strap -Various colors Color : K, CB, NY or the special metal color2.5 Times increase in underwater field of vision.The five-position strap angle adjuster for the best fit.bigger frame ,but lower inner volume for easy clearing.Welcome my friend ,If you have any questions ,please contact us in anytime ! Silicone and strap mask with new style