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Swimming Goggles Mirrored Lenses B-FAST 900 Black / Red

Regular price: $44.99 Regular price:

Tired of having only one size nose bridge? Thanks to their innovative system with a nose bridge that can be adjusted with precision and their compact design, these goggles offer you perfect stability.

Color: Select a color
Size: Select a size
Sale price: $44.99 Regular price:

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San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8547681

Product Videos

Product Features

A photo of the Swimming Goggles Mirrored Lenses B-FAST 900 Black / Red in use

Swimming Goggles Mirrored Lenses B-FAST 900 Black / Red | Our design teams have developed these goggles for advanced swimmers looking for performance while training as well as competing

Tired of having only one size nose bridge? Thanks to their innovative system with a nose bridge that can be adjusted with precision and their compact design, these goggles offer you perfect stability.


Swim with fog-free goggles – these swimming goggles have an anti-fog treatment.


Feel the stability thanks to the lenses’ compactness and streamlined design.


Adjust your nose bridge with precision and the double elastic on the rear

Field of view

Benefit from a wide field of vision 135<X<150°.


Soft compression seals enabling the goggles to be adjusted to fit your face

Product Lifestyle Image Gallery

Image Gallery

Swimming Goggles Mirrored Lenses B-FAST 900 Black / Red,black 

Swimming Goggles Mirrored Lenses B-FAST 900 Black / Red,black 

Swimming Goggles Mirrored Lenses B-FAST 900 Black / Red,black 

Swimming Goggles Mirrored Lenses B-FAST 900 Black / Red,black 

Swimming Goggles Mirrored Lenses B-FAST 900 Black / Red,black

Questions & Answers

Product Customer Reviews

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Swimming Goggles Mirrored Lenses B-FAST 900 Black / Red,black
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great swimming goggles

good seal, good vision, good looking



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Poor quality

Used for six times and the inside of the lenses are damaged. Just rinsing them off with water and not rubbing with anything except my eyelids.

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Good goggles

Good performance

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The goggles will be fine for one summer season

I am a weekend outdoor person always interested in new products at a fair price

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Good Goggles

good price and have lasted well

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B-fast goggles

Did not seal well. Water leaks in

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swim goggles

These are great goggles. Comfortable fit

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Excellentes lunettes à prix abordable!

Does not worth its price!

Started to fog after the 6th session... and completed fogging after the 20th session which means after only two months!! Not practical at all especially its rubber started to be stretched below the lenses which leads to a leakage of water to inside

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Good product

If the goggles leak when first using make fine adjustments to the nose bridge. This should eventually sort the issue. Takes a little time so be patient.

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Not good

Okay to see the bottom of the swimming pool. When trying to look a Head and above the water, you get a bad reflection. Very off putting.

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Tint life

Tint wears off quickly

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soft plastic

Unfortunately I can't recommend this product like many others from decathlon. Anti-fog layer stopped working after 3-4 sessions. Plastic itself is very soft and it is extremely easy to scratch eaven when you use soft cloth to clean it. I used it 2-3 times a week. The only good thing about this goggles is stylish look and adjustable nose gap.

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Additional Product Information


Joint/Gasket: 100.0% Thermoplastic Polyethylene ; Buckles: 100.0% Polycarbonate ; Strap: 100.0% Silicone ; Lens: 100.0% Polycarbonate ; Structure: 100.0% Polyamide ; Screws: 100.0% Polyoxymethylene

Patented innovation

Are you looking for goggles that are tailored to fit your face, completely watertight and that do not move as you swim, dive or tumble turn? We bring you the answer in the B-FAST goggles thanks to a nose bridge adjustment system that is simple and precise. This system lets you fine-tune the spacing of the two lenses, using either the screwdriver provided with the goggles or the built-in tool on the back buckle.


The appearance of fogging depends on several factors, the difference in temperature between the body and the water, humidity levels, etc. Wear due to friction is one of the main causes.If your goggles fog up, dip your lenses in the water and a protective film will reform.After a certain amount of time it is normal for the performance of the anti-fog coating to be diminished.We provide an anti-fog marker that reactivates an ageing anti-fog treatment and makes your goggles last longer.

Choice of size

The watertightness of the swimming goggles is dependent on the proper fit of the skirts with the shape of your face. Before purchase, we advise you to do the ”suction” test without the strap. If the goggles stay on the face by themselves via slight suction, the product will be watertight during your swim. This also enables you to spot any areas of discomfort or annoyance when the model is on the face.One-size model with precise nose bridge adjustment

How to adjust your goggles

These swimming goggles fit the morphology of your face without needing to be over-tightened.Goggles that are too tight can cause discomfort, leave marks and even create water inlet holes.It is not necessary to press against the lenses with your hands, a light suction effect is usually enough for swimming sessions without water inlet holes.The straps ideally should rest 2-3 cm above your ears.This position will optimise the grip and comfort of the goggles.

Lens tint

The colour of your goggles should be suited to your swimming location and its lighting.If you practice outside or in a pool with harsh lighting, prioritise goggles with smoky lenses to limit the glare for greater comfort. If, however, the pool is quite dark with low lighting, winter evenings for example, use clear lenses.The B-FAST swimming goggles are available in different lens tints.

Care - precautions

We recommend: - rinsing your goggles (only if necessary) by simply dipping them in water- avoiding directing powerful jets of water at the inner surface of the lenses.- storing the goggles in their case after each session to prevent damage to the lenses (on the inner surface as there is an anti-fog coating and on the outer surface to prevent scratches)- not exposing them to temperatures of over 60°CDO NOT TOUCH / RUB THE INSIDE OF YOUR LENSES

Uv protection

Complies with standard: Q/BT 4734 - 2014, all Nabaiji swimming goggles protect against harmful UVA and UVB rays when used normally, regardless of the lens tint. Looking directly at the sun is dangerous and can lead to irreversible eye damage.

Fina approved

B-FAST NABAIJI goggles are training and competition goggles approved by FINA (international swimming federation).

Product testing

The Nabaiji swimming goggles comply with the EPI regulation 2016/425.Our products are tested and approved by independent laboratories.Goggles intended for swimming at the surface

Storage instructions

After use, store the goggles in their case.Important: Do not touch the inner surface of the lenses as this could destroy the anti-fog treatment



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.

Decathlon makes the difference
  1. product-research

    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

  4. laptop-checkout

    Minimal retail footprint

    lowers overhead and indirect costs


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