Corrective mask lenses for the XS Scuba Metro & M-Line.

Negative Diopter

Negative diopter covers entire surface of lens

Easy to install on XS Scuba Metro & M-Line

Fits many of today’s most popular masks

Highest quality optical glass

Precision ground and polished

Tempered glass

Meets ANSI Z86.11.1985 standards

Available in -1.0 to -8.0 negative diopters

Positive Diopter

Positive magnification covers bottom 1/3 of lens

Top 2/3 of lens is clear glass

Same features as negative lenses

Available in +1.75, +2.25 & +2.75 positive diopters