Hollis M3 Prescription Dive Mask Visibility is the most crucial aspect of any dive. The Hollis M3 Prescription Dive Mask provides that with distortion-free vision and superior fit. This low profile design uses a rigid frame and two lenses with an extra clear glass which is valued for its attractive appearance and optical qualities. The low iron content produces a higher light transmittance and a reduced green tint inherent in other glasses. This makes the lens distortion free and helps improve colour and visibility in low light conditions underwater. Hollis M3 Corrective Dive Mask Features Frameless 100% pure silicon skirt Tempered Crystal Clear Glass Wide vision and low volume 4-way buckle design for superior comfort and storage if needed Optical Prescription Lenses The Hollis M3 Mask Optical Prescription Lenses are for M3 Mask only, Available in Left and Right. Negative Diopters: -1.5 to -8 in 0.5 diopter increments. These prescription lenses are pre-made corrective lenses made from high-quality optical glass and are minus power lenses. Left and right lenses are sold separately, Please note that the Minus Diopters are only the Sphere part of your script. If you are not sure what lenses to order, please ask your optometrist for advice before purchasing for each eye. Negative Diopters: -1.5 to -8.0 Available in Left and Right Compatible with the Hollis M3 Mask
