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Adult Easybreath dive Mask - 900 Black

Sale price: $69.99 Regular price:

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: $69.99 Regular price:

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Model: 8771629

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Product Features

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.

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


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

Easy breathing

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.

Water drainage system

Purge valve at the bottom of the mask to drain water when the head is raised.

Anatomical design

2 mask sizes with a silicone face skirt for comfort and a watertight seal.

Product Lifestyle Image Gallery

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Questions & Answers

Product Customer Reviews

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969 Reviews
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Quite comfortable and versatile

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Fogging on…

Fogging on the mask from the first minute of use... I felt like I was lacking air when I was swimming, which I don't have when I use the traditional mask and snorkel.

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With the silicone points it has, it leaves a wound between your eyebrows when it is pressed with pressure and you spend 4 days looking like a Hindu with the wound it leaves you with. Very badly

Finally, we…

finally, we all equipped ourselves in the family, 3 masks. Aquatic hikes in the Maddalena archipelago in Sardinia with these masks, just magical! Taking the time before adjusting the mask straps to the face saves you time later.

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snorkel mask

I loved this mask, I was able to snorkel in a more affordable and safe way.

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Guaranteed adventure

Mask for those who want to venture into the sea. Easy to place and use. It allows for excellent underwater observations.

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size large but not…

size large but not one size

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I bought this mask...

I bought this Ami July mask. Since then I was on vacation then sick and I tried it last week. Water gets in there - no use. I threw away my money. I can't get a refund because I trusted Decathlon products so much that I wouldn't keep anything. I didn't think I could have brought him back. Really very disappointed. I have the previous mask that I enjoy using. I have never had a problem. In addition, I was advised at the time of purchase and it seems that it is my size. So I strongly advise against…

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Was a little tough on the breathing for me. But the mask is pretty good.

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Great product and good vision I recommend it 100%

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The product is not…

The product is not pleasant to use. Loosely it leaks and tight to prevent water from seeping in it quickly becomes unpleasant to wear. It is not suitable for snorkeling lasting several minutes.

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A lot of fog

A lot of fog

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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

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.

Check your easybreath mask before use

Before each use, check your Easybreath, especially your child's: - Hold the snorkel in your hand and move it from left to right. The ball should follow the movement without resistance - Check that the seal is present, in good condition and correctly installed - Check that all the valves are present, not deformed and are lying flat- The skirt should fit the mask perfectly- Never use the mask without the snorkelLearn More:

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.

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.

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 10-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.

Can i wear the easybreath 900 if i have a beard?

Beard hair prevents good contact between the facial skin and the skirt of the mask. The seal of this full face mask cannot therefore be guaranteed for beard wearers. To guarantee a watertight seal, it is best to shave. Alternatively, using a thick balm such as Vaseline can also be a solution.

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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