Hollis M1 Frameless Mask

Availability: In Stock
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...
Availability: In Stock

Key Features

Frameless technology
High quality glass
Crystal silicone  provides comfort and reliable seal.   

Product Overview

Visibility and comfort are the most important features for any mask.  The Hollis M1 Frameless Mask successfully delivers on both.   Made from Saint-Gobain Diamant glass, the M1 offers an extremely high quality lens.  It is known world-wide as an extra-clear glass with a low iron content which generates a higher transmission of light and the green tint characteristic of ordinary glass is significantly reduces.  

With the lens installed directly into the skirt of the mask, there is no need for a hard frame.  This allows for a low profile/volume mask that is simple to clear, provides a wide view and easier to pack, even in a bcd pocket.  The 100% pure silicone double feathered edge skirt and wide split style mask strap combine for a perfect seal and comfort on the face. The Hollis M1 has low-profile quick adjust buckles as well.

Warranty Information

This product has a limited warranty of 24 months.


  • Latest design in frameless style masks
  • Saint-Gobain Diamant glass lens
  • Low iron content resulting in reduced green tint inherent in standard glass
  • Integrated easy-adjust swivel buckles
  • Low Volume
  • Crystal silicone - The highest grade silicone available for a soft comfortable seal
  • Increased field of view
  • Free protective hard case included
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Product ID

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Key Features

• Frameless technology
• High quality glass
• Crystal silicone  provides comfort and reliable seal.   

What's in the Box

• Hollis M1 Frameless Mask with Mask Box


Window Style 1 Front
Materials Skirt & Strap: Silicone
Tempered Glass Yes
Volume Low
Mask Box Yes

Customer Reviews

Customer Reviews

Based on 1 review
William McLaughlin
Prepare mask before using

This mask is super vis is really good and the comfort is about as good as it gets. Had to get me a spare because dont think i am going to risk diving with anything else.