2025 model low-volume, mirrored lens (polycarbonate) for freediving. Used only once for about 2 hours. I've tried overseas models like Picasso, C4, and Omer, but they didn't fit well due to differences in bone structure. This one fit my Asian, flat face (though individual fit may vary). I cleaned it with a lens cloth, but there are faint lines on the lens. Please understand that this is a used item, not new. Used for spearfishing. I bought it because I thought the mirrored lenses would prevent fish from seeing my gaze and eliminate my killing intent, but the field of vision through the mask felt different in terms of distance compared to my previous Paragon mask from the same company, so I'm selling it. This mirrored lens type is 2000 yen more expensive than the clear lens type.