M-1 MASK

(14 customer reviews)

$114.95

Visibility is the most important aspect of any dive and the M-1 Mask raises the bar for optical quality and distortion-free vision. The lens is ultra-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 color and visibility in low light conditions underwater.

223 in stock

SKU: 205.4500.07 Categories: , Tags: , , , ,


Visibility is the most important aspect of any dive and the M1 Mask raises the bar for optical quality and distortion-free vision. This lens is ultra-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 color and visibility in low light conditions underwater.


  • Frameless 100% pure silicon skirt
  • Ultra Clear Lens
  • Wide vision and low volume

WARNING! This product can expose you to BPA Bisphenol, which is known to the state of California to cause birth defects or other reproductive harm. Learn more

14 reviews for M-1 MASK

  1. SeaKreature –

    I have countless mask, and tried a number of them in the past. This one is the one I stick with. As an instructor I have students asking me how my mask clears so fast and why I dive a mask that my shop doesn’t even sell. I tell them I only dive the best and when they try it on and see the difference in the rental mask and the M1, they ask how they can get the M1. Great Mask!

  2. Rick –

    I have a goatee and this mask seals perfectly. I’ve never ever had a mask that sealed all the way around the nose forehead sides everything it is a phenomenal mask glad I purchased it. I highly recommend it Hollis M1.

  3. Mikhail –

    Simply the best …

  4. Jerry –

    I bought this mask about 4 months ago the optics are wonderful the fit is excellent for me and crazy enough my 6 year old boy.

  5. Teabag –

    I battle to find a mask that I can put on and forget about during a dive.
    I tried the M1 and instantly I could never do without it!..best fit I’ve ever experienced in twenty five years of diving.

  6. DiverDan –

    Been diving with several thousand dives since 1987. I tried this one for an upcoming liveaboard in Indonesia, and the fit with an inhale was so good my ears popped, so I bought one. Best fit of many I’ve used for 28 years.
    Of course, if it doesn’t fit you, keep looking. Masks ar the most personal piece of dive gear. So if it doesn’t fit you, don’t knock it, and I hope you find one that does.
    Retired PADI OWSI

  7. SCCPA –

    I have been diving a clear skirt side window mask for years and tried my buddy’s M1.
    Bought one and really happy with it! The fit is amazing and the clarity is amazing.
    Its like going from VHS to BluRay-
    If you’re in the market for one-this is one to definitely try!!

  8. Paulky –

    My wife and I tried on numerous masks in a dive shop recently and narrowed it down to three masks, but both settled for this one as it was a really good fit for both of our very different faces, is very comfortable and has fantastic wide/high and low vision. Went straight on to do five dives over the weekend and had no issues at all. Wonderful

  9. Alejandro –

    The best …

  10. Alejandro –

    The best …

  11. Anas –

    I’m using the m1 mask for 3 years now and i will never consider another. It is simply the best!

  12. John –

    Been diving over 50 years,this has to be the best mask on the market for anyone with facial hair.Always a good deal.

  13. Peter Bonacum –

    Just a great mask. Fits well. Never leaks. Great field of view. Wouldn’t consider anything else.

  14. Karl M –

    The M1 Rocks

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