SeaDive Oceanways OceanCat-HD High Definition w/Anti-UV/Glare w/Anti-Fog Scuba/Spearfishing Dive Mask (OM964BKSFF) SeaSharp High Definition Lenses sharpens underwater viewing Reduces distortion by defining faint edges Filters out UV and glareRefines what you see for better definition Changes white light harshness to a calming blue light for less eye strain Plastic box with lid included