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Adult Easybreath dive Mask 900 - Black

Sale price: $45.00 Regular price: $69.99

The soft nose part of the Easybreath Adult - 900 mask allows you to explore to a depth of 3 metres the underwater world.

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Sale price: $45.00 Regular price: $69.99

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Final Sale: No returns or exchanges

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San Francisco, 735 Market St. Options

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About this item:

  • Easy breathing: Full mask with natural breathing through the nose and/or mouth.
  • Field of view: Panoramic field of vision, 180 ° effect.
  • Anti-fogging: Exclusive air circulation technology preventing the mask from fogging up
  • Water drainage system: Purge valve at the bottom of the mask to drain water when the head is raised.
Model: 8771629

Product Videos

Product Features

A photo of the Adult Easybreath dive Mask 900 - Black in use
A photo of the Adult Easybreath dive Mask 900 - Black in use

Adult Easybreath dive Mask 900 - Black | The Adult’s Easybreath dive Mask 900 allows you to equalise your ears and therefore be able to explore a few metres underwater.

The soft nose part of the Easybreath Adult - 900 mask allows you to explore to a depth of 3 metres the underwater world.


Soft nose to equalise the ears and freedive down to 3 metres

Easy to use

Full mask with natural breathing through the nose and/or mouth.

Field of view

Panoramic field of vision, 180 ° effect.


Exclusive air circulation technology preventing the mask from fogging up


The ”dry-top” snorkel limits water entry through the top of the snorkel.

Questions & Answers

Product Customer Reviews

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all in one.

Finally everything in one. Great field of vision. Snorkel also works perfectly in the sea with a little waves. Only if you have a beard does the mask have to fit quite tightly. But it does have a “water drain valve”.

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In the top

In the top

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tested and validated…

tested and validated in COZUMEL. No disappointment

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Great for snorkeling

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The mask is very…

The mask is very uncomfortable and leaves a big red mark on the face. Depth management (supposedly 3 meters) is not possible... Disappointed. I prefer the older, more comfortable models.

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It's a pity that water keeps getting in from above.

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Product ok

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I highly recommend

I highly recommend

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I recommend

I heartily recommend it!

For diving

Great mask. It does not leak, does not evaporate, you can breathe through your nose

Good product to go…

Good product to go deeper

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Good product to make…

Good product for shallow diving 😊

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Easybreath 900 Diving Mask Black Adults SUBEA

The product does not seal well. The water enters from above, on the forehead and reaches the eyes and then fills the space intended for breathing, the mouth and nose. Totally unpleasant. Before this mask I used something cheaper and much more effective. I do not recommend. I will try to return it.

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Great product

Easy to use, great quality, highly recommended
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Size Guide

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Additional Product Information


Skirt: 100.0% Silicone ; Lens (for diving): 90.0% Polycarbonate, 10.0% Styrene Ethylene Butadiene Styrene ; Tube (for diving): 100.0% Polycarbonate ; Frame (for skiing): 100.0% Polypropylene

Before each use, check your easybreath, and especially your child's:

- Hold the snorkel in your hand and move it from left to right. The ball should follow the movement without restriction - Check that the seal is in place, in good condition, and correctly positioned - Check that all of the valves are in placed, lying flat, and that they're not deformed- Check the overall assembly of the mask and make sure that there are no defects in the assembly of the skirt on the frame or in the lens.- Never use the mask without the snorkel

What if my mask is fogging up?

If it fogs up over your eyes, we recommend repeating the 4 steps set out above, properly repositioning your Easybreath mask, and checking that the size of your Easybreath is correctly fitted to your face. If the issue continues, do not use the mask and contact your closest Decathlon store.

Snorkelling safety

Snorkelling is an easy and fun activity for all the family! Breathing through a snorkel is more physically demanding than regular swimming. If you feel tired, short of breath or dizzy, remove your mask and get out of the water.Do not use this product if you have cardiovascular or respiratory problems (lung infection, angina, asthma, hypertension, heart disease, etc.). If in doubt, consult your doctor.

What is the easybreath adult dive mask - 900?

The Decathlon Easybreath 900 mask shares the same features as the Easybreath 500 (anti-fog, panoramic field of view, easy donning, dry-top snorkelling), but the major difference is this new snorkelling mask offers something new: nose-access. The soft part around the nose allows you to equalise your ears and dive down without the risk of damaging your eardrums. The full power of the Easybreath concept with the ability to go down!

Why does this easybreath mask have a soft nose?

Despite its low volume, when swimming underwater and freediving (to a depth of up to 3 metres), the pressure around you increases. This is what causes discomfort in the ears. The easiest way to compensate for this is to pinch your nose and blow gently to send air into your ears. The pressure can also press the mask against your face. To relieve any discomfort, exhaling through your nose or mouth is the easiest way to reposition the mask.

How does the easybreath work?

The fresh air is projected onto the glass before reaching the nose or mouth via the nasal valves. The constant supply of fresh air reduces the amount of fogging up in the mask.The air packed with moisture and CO2 is evacuated through channels located inside the mask's rim, which leads this air into the snorkel. The air is constantly renewed. The flow of air going in and out are separated to avoid mixing in polluted air and allowing you to breathe fresh air.Licensed under Ocean Reef Group

How does the dry-top system stop water from entering?

The mask uses Dry-top technology. This system was developed to stop water from getting into the snorkel when there is choppy water, small waves on the surface, in case of submersion or when the user leans their head too far forward to observe the seabed. The snorkel is fitted with a float that rises to close the opening when the snorkel is submerged. When this happens, remember to take the snorkel out of the water and blow into the mask to make sure the buoy comes back down.

Why is the easybreath mask not made for diving?

The choice of the Decathlon snorkel mask (Easybreath) should be made if the user is mainly looking for high breathing comfort and a wide field of vision. The design of the Decathlon Easybreath mask makes it ideal for people who are mainly observing from the surface and want to do some shallow freediving.

Which easybreath 900 size is right for you?

The Easybreath Adult Dive Mask - 900 comes in 2 sizes and covers 90% of an adult's face.From 12-year-old and for small faces, opt for size S/M and for bigger faces: size M/L.To choose the right size when in the store, tighten the mask so that it fits against your face: there should be no gap between your chin and the bottom of the mask.

Storage instructions

Store in a dry place away from light.


Availability of spares that are essential to using the product: 2 years.



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