Promate Pro Viewer Purge Mask and Dry Snorkel Combo Set for Scuba Diving Snorkeling - SCS0005

• Ideal for medium faces- face seal size W4 3/4 * H3 3/8.
• Patented purge design.
• Patented channeled skirt design directs bubbles away from view.
• Crystal, liquid silicone injected skirt and strap.
• Double edge comfort seal.
• Low volume.
• Swivel and adjustable buckles.
• Broad peripheral view.
• Tempered glasses.
• Optical lenses available from -1.0 to -10.0 by increments of 0.5 (for near sighted).
• Optical lenses available from +1.0 to +4.5 by increments of 0.5 (for far sighted).
• Made in Thailand.

• A unique, 100% absolute dry design -- Patented upper valve keeps water from entering the snorkel.
• Allows air to easily enter snorkel for clean and unobstructed breathing.
• Specially designed cover guards against water splashing into the snorkel.
• When the dry snorkel is submerged in water, the patented hinged seal reacts to seal the snorkel, preventing water from entering.
• As you surface, the hinged seal swings open allowing air to enter.
• Built-in whistle housing.
• Quick slip-in snorkel keeper.
• Pre-curved flexible silicone corrugated low section.
• Pre-curved silicone mouthpiece, prevents jaw fatigue.
• Silicone purge valve for easy draining.

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.