Ocean Design Opti Dive Mask

The Ocean Design Opti Mask is a unique, low cost alternative to traditional corrective lens masks. Instead of replacing the clear/plano mask lenses, negative dioptre or bifocal corrective lenses snap-on to each side of the mask. Great for Scuba Diving and Snorkelling. Fits Small to Large Adult Faces Ocean Design Opti Mask Features: 2-window design for sharp looks and maximum field of view Fits small to large adult faces Accepts negative and bifocal snap-on corrective lenses Corrective Lenses: Negative: -2.0 to -6.0, step 0.5 Bifocal: +1.5 to +3.5, step 0.5 Lens on request, additional cost apply