Maximize your situational awareness with the Oakley Tombstone Safety/Shooting Glasses! The rimless design allows for a completely unobscured field of view while providing maximum protection that exceeds ANSI Z87+ standards and is marked as such. Using eye-tracking technology, Oakley identified the key zones in your field of view to allow for 120 degrees of vision. An integrated single release trigger allows for rapid fingerprint-free lens replacement.