Promate Micro Prescription Scuba Dive Snorkeling Mask for Smaller Face - MK107 RX

Promate Micro Prescription Dive Mask for Smaller Faces Ideal for smaller faces - Width 4" 3/8 x Height 3"  Double edge comfort seal Low volume Swivel and adjustable buckles Broad peripheral view Tempered glass Optical lenses available from -1.0 to -8.5 by increments of 0.5   How to measure your face to see if this mask fit you.If you look in the description, there is a face seal size. You would need to measure the width and height of your face. Width is from one outer corner of the eye to the other outer corner and the height is from the eyebrow to under the nose. Please refer to our Prescription Masks 101 page for more information.