Availability: In Stock (6)

Part Number:205.4500.07 Manufacturer: Hollis Color: BLACK




  • Saint Gobain Diamant tempered lens
  • Reduced green tint inherent in standard glass
  • Frameless single lens mask design
  • Low internal volume for easy mask clearing
  • Extra wide field of vision


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Visibility is the most important aspect of any dive. The M1 Mask raises the bar for optical quality and distortion free vision. The extra crystal-clear Saint-Gobain Diamant tempered glass single lens 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 glass. This makes the lens distortion free and helps improve color and visibility in low light conditions underwater.

The M1 frameless design makes it easy to stow in a BCD pocket, so it can also be used as a back-up mask if required. Mask provides a wide field of vision with a low internal volume making it extremely easy to clear. The 100% pure silicone double feathered edge skirt and wide split style mask strap combine for a perfect seal and comfort on the face. Mask has low-profile quick adjust buckles. The M1 Mask is available in all black, comes with a protective mask box for storage.

This product can only be shipped to U.S. addresses.


Warranty Information

This product has a limited warranty of 24 months.



Hollis M1 Frameless Mask Features

  • Hollis M1 Frameless Mask:
  • Visibility: Most Important Aspect of Any-Dive
  • Optical Quality and Distortion Free Vision
  • Extra Crystal-Clear Saint-Gobain Diamant Tempered Lens
  • Single Lens Design
  • Saint-Gobain Diamant Glass: Valued for Attractive Appearance and Optical Qualities
  • Low Iron Content Produces Higher Light Transmittance
  • Reduced Green Tint Inherent in Standard Glass
  • Lens Distortion Free, Improved Color and Visibility in Low Light Conditions Underwater
  • Frameless Design, Easy to Stow in a BCD Pocket
  • Great Back-Up Mask
  • Wide Field of Vision
  • Low Internal Volume, Extremely Easy to Clear
  • 100% Pure Silicone Double Feathered Edge Skirt
  • Wide Split Style Mask Strap
  • Feathered Edge & Wide Split Strap Combined for Comfortable and Perfect Seal on Face
  • Easy to Reach One Handed Nose Pocket for Ear Equalization
  • Low-Profile Quick-Adjust Buckles
  • Mask Box
  • Color: All Black

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