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SNK520 Snorkeling Mask

Sale price: $10.00 Regular price: $14.99

Explore underwater life with our snorkelling mask. It’s solid and comfortable, with anti-scratch treated glass.

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Size: Select a size
Size Guide
Sale price: $10.00 Regular price: $14.99

Free shipping over $35

Final Sale: No returns or exchanges

See our return rules

Free pickup

San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8550827

Product Videos

Product Features

A photo of the SNK520 Snorkeling Mask in use

SNK520 Snorkeling Mask | The ideal mask for enjoying snorkelling and experiencing their 1st submersions in the water. All of the benefits for a lower price.

Explore underwater life with our snorkelling mask. It’s solid and comfortable, with anti-scratch treated glass.

Field of view

field of vision measured for a size M


Better vision and scratch resistance thanks to the single-lens tempered glass.

Easy to put on

Fabric strap that doesn't pull out hair. Built-in snorkel clip.

Anatomical design

Comfortable & waterproof thanks to silicone skirt. Mobile adjustable tube strap

Internal volume

A smaller internal volume makes submerged descents easier

Product Customer Reviews

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2636 Reviews
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SNK520 Snorkeling Mask,turquoise green
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I like these goggles, they are tempered glass and won't scratch and seem to be a good quality product!

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Bought as cheap snorkeling mask but end up scooba

Great suction very comfortable, incredible deal for money! Bought as cheap snorkeling mask end up 26 m scuba dive.

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Good first mask

Good beginners mask

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Freedive mask

Very well built and the thick strap is great. The Decathalon Tempe staff were amazingly helpful during the online shopping process. Thank you

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Pleasantly surprised

I was sceptical at first about this mask because of the low price. I have used this mask several times now and can honestly say that it is great and does not leak (for me). I made sure I tested the mask at the shop for a correct fit and could not be any happier with this mask. Great value and great quality.

Love my mask

Great price, great product

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Good product

My daughter loves it

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Fait en vitre

Ces lunettes de plongée sont fait en vitre et ont éclatées dans la face à ma fille lorsqu’elle les a enlever. Une chance aucune vitre a été dans ses yeux mais un petit morceau aurait pu endommager ses yeux. Il y avait de petits morceaux partout par terre!!!

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bon produit

parfait comme masque de plongée.

Dangerous product! very cheap glass!

This mask was used less that a week before the glass shattered in my son's face when he jumped into the pool with it! Words cannot express how angry and disappointed we are in this dangerous product. The tempered glass is obviously of very very poor quality, and can shatter in a child's face! We were lucky his eyes were closed when this happened and we avoided the worst, so cleaning bits of glass from my pool floor was a much better scenario than having to take a child to the emergency room with shattered glass in his eyes!! Don't buy this mask, it's is cheap and dangerous!!

Used all summer, so comfortable

Tested this for 1.5 years now. So comfortable, doesn’t leak, and the fabric band is great, never gets tangled in hair. Brilliant value for money,

Fogs up within 20 seconds.. don't buy this

This mask is bad. It fogs up within a very short timeframe, under a minute. So you can't see anything at all. I tried returning it for an exchange but customer service said that I should've bought the antifog mask. Why sell something that doesn't work? The glass is also very think and prone to shattering in your eyes.

SNK520 Mask

A mask with two halves The mask itself is excellent value, well constructed, shaped, sized and thought out The weird bit is the elasticated fabric head strap Why this material? It has a snorkel loop which is totally in the wrong position It would be a five star product if not for the strap

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Snorkel Mask

I use this mask for swimming in a pool, to stop water going in my eyes or up my nose. I find sometimes the mask work loose and needs adjustment mid length, but that could easily be my own movements. I would recommend this product, just tighten it up enough

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Value for money

Good budget mask for snokelling

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Size Guide

Size Guide Visual

Additional Product Information


Diving mask skirt: 100.0% SILICONE ; Strap: 100.0% Polyethylene Terephtalate ; Diving mask frame: 100.0% Polycarbonate ; Diving mask (lens): 100.0% Mineral glass


For children from 6 to 10 years, we recommend size S. From the age of 10, size M is recommended for thin faces and size L covers larger faces.

How to choose the right mask size

You need to position your mask on your face without the strap, and press with your hands to make sure it’s firmly in place, blocking your breath.If the mask ”suctions” properly, and stays stuck to your face, it’s perfect and means that it is your size and will be watertight.If it unsticks and falls off, that means that air is getting through, and so water will get in, so you’ll need to try another size or another mask.

Avoid the appearance of mist in your mask

New mask: Wash your mask with washing-up liquid and warm water, using your fingers, to remove any grease. Do not use a sponge. Before each use, spit into your mask and wipe the lens with your fingers to rinse the mask.Dampen your face with the water to limit heat loss between the skin and the lens of your mask, as this will reduce mist.Use an anti-fogging spray to completely eliminate mist.


Silicone is an extremely flexible material. A silicone skirt conforms gently to the contours of the face, creating a watertight seal.

Tempered glass lens (sizes m & l), polycarbonate plastic lens (size s)

Tempered glass is two to five times more durable than traditional glass. It's more resistant to scratches than a plastic lens. That said, in the event of a major impact, it breaks into small pieces, reducing the risk of a major accident. Do not dive or jump into water when wearing or holding the mask.Don't leave your mask in direct sunlight or in a hot car just before using it.For the safety of children, size S is made with plastic.


Mask certified compliant with safety requirements according to European EN 16805 standard. 2015. Certified by the INPP (French professional diving institute).

0% pvc

This mask contains no materials containing PVC.

Dimensions (size m)

Width: 18 cm.Height: 11 cm.Thickness: 8 cm.

Mask weight (size m)

200 grams.

Storage instructions

We advise you to store the Mask in a dry place away from direct light.Don't leave your mask in direct sunlight or in a hot car just before using it.



Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.