Simply the best Full Face Snorkel Mask on the market. These three features put Duke in a class of its own:

  • The advantage of lateral tube position.
  • An excellent Anti-fogging effect.
  • A minimal build-up of residual CO2.

Cressi have been a leading manufacturer of Scuba Diving equipment for over 70 years! Who would you trust to design the most comfortable and safest full face mask?

It’s a single piece designed set that incorporates the snorkeling mask and snorkel together as one. This unique design has been made to give the best possible vision with 180 degree viewing and not obstruction at all to get in the way of your vision and gives approx 30% more viewing than a standard mask. It is made with 100% silicone which means that it is extremely soft of your face allowing you to wear it for hours and still be comfortable and has an adjustable elastic strap that allows you to get a perfect fit each and every time.

The built in snorkel sits on the top of the mask out of the way and is a dry top design. A dry top has a valve in it which prevent water from entering the snorkel when you dive under water. This means that you will never have large amounts of water in your snorkel. Due to the fact that your nose and mouth are in a separate chamber to your eyes, this means that you will never have fogging issues in the top compartment as your nose is separate. If you are uncomfortable at all when the standard snorkel mask, you will absolutely love this design.

Our new system of breathing, that we have designed are patenting, because it doesn’t use the old system of breathing through a central tube system, so it doesn’t require the need for forced breath to travel a longer distance and open more than one valve.

What else makes our mask different from all the others? And how does the Duke allow the diver to breathe freely and also expel CO2 build-up and not fog up the vision chamber?

The reason why we have chosen to position the tube laterally is that it is the shortest route possible for airflow with minimal effort. And this is currently under patent.

Its left-side tube is divided into two before entering the two separate chambers.

One is connected to the breathing chamber and the other is connected to the vision chamber.
This advantage is enhanced by the fact that neither the breathing chamber nor the tube have any valves to impede the user’s breath.

What’s more, the extraction chamber has an enlarged volume in order to allow for optimal CO2 extraction.
Something interesting to note is, this airflow system in Duke produces far less co2 build-up than a safety gas mask.

We had the opportunity to test it in the laboratory of Milan polytechnic’s engineering department where the results were beyond our expectation.

The second independent tube. It’s connected to the vision chamber and extracts moisture and warm air that builds up in this chamber, completely separate from the breathing chamber.

Duke has a deflector, which is also under patent, which maximizes the extraction of warm air produced by the face when the mask is worn, and it is designed to work like a chimney effect forcing air circulation away from the lens.

Finally, Duke has large outlet valves at its base, to drain the mask quickly& easily if it fills up with water.

Product Features:

  • Natural Breathing
  • Dry Top Snorkel Piece
  • 100% Silicone Skirt
  • Comfortable Adjustable Straps
  • Panoramic View
  • 30% more Vision
  • Anti-Fogging
  • Perfect for Snorkellers
  • Easy to Wear


We always try to have stock on hand of the most popular colours

  • Black/Red (Best Seller for the Guys)
  • Clear/Silver (Best Seller with the Girls)
  • Black/Black (Favoured by the old school Divers)


  • Small-Medium (S-M)
  • Medium-Large (M-L)

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