# Speedo Biofuse Mask Adult Swim Mask

The Speedo Biofuse Mask is an adult swimming mask with a curved lens, silicone skirt and adjustable split strap. Its claimed anti-fog coating and push-button adjustment suit pool or open-water use, but customer feedback is mixed on fit and water leakage.

- [Original product page](https://bargainpostbox.co.uk/product/speedo-biofuse-adult-swim-mask)
- [View offer](https://bargainpostbox.co.uk/visit/speedo-biofuse-adult-swim-mask)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Speedo
- Model: Biofuse Mask \| Dive \| Swim \| Ergonomic Design \| Open Water \| Leak Free
- Category: Sports & Outdoors > Water Sports
- Price: 20.38 GBP
- Previous price: 23.99 GBP
- Discount: 15%
- Price checked: 2026-11-14T19:42:03.092Z
- Rating: 3.9 / 5
- Reviews: 158

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Curved lens design is claimed to provide an expanded field of view.
- Soft, flexible silicone skirt and split strap are designed for comfort and fit.
- Push-button mechanism allows strap adjustment.
- Anti-fog is listed as a special feature and lens coating.

## Pros

- Curved lens design offers a wider field of view than a conventional flat-lens claim would suggest.
- Push-button adjustment is straightforward to operate, while the split strap is intended to improve comfort.
- Silicone is specified for both the skirt and strap.

## Cons

- Customer feedback is mixed on whether the mask stays leak-free, so a secure seal is not assured for every face.

## Specifications

### Identity
- Brand: Speedo
- Model: Biofuse Mask \| Dive \| Swim \| Ergonomic Design \| Open Water \| Leak Free
### Dimensions and listing details
- Dimensions listed: 35 x 30 x 4 centimetres
- Weight listed: 0.15 Grams
### Materials and protection
- Material listed: Lens: PC,Frame: PC,Gasket: Silicone,side clip cover: PC,Strap: Silicone,strap clip: PC
- Lens coating: Anti-Fog Coating
- Frame type: Full Rim
- Size: One Size
- Colour: BLACK
### Fit and use
- Sport type: Swimming
- Closure type: Push-Button
- Fit type: Regular
- Age range: Adult

## Before you buy

- The listing describes this as an adult Biofuse Mask and provides a one-size fit, but customer feedback on fit is mixed. The listed weight of 0.15 Grams and dimensions of 35 x 30 x 4 centimetres may not describe the mask alone, so confirm these details if they matter to your purchase.

## In the box

- Swim mask (Included)

## A good fit for

- Swimmers looking for a mask-style fit with a curved lens and adjustable strap.
- Buyers considering pool or open-water swimming who value a silicone skirt and anti-fog coating claim.

## Less suited to

- Anyone who needs a guaranteed leak-free fit or a precise fit across different face shapes.

## Customer feedback

Customer feedback highlights comfort, quality, visibility and functionality, with some reporting use for several hours in the sea. Views on fit and leakage are mixed. For open-water use, the curved-lens design and adjustable split strap may be useful, but the feedback does not establish a dependable seal for every wearer. The rating distribution is also divided, so treat the positive comments as individual experiences rather than a guarantee.
- Positive themes: Customers report comfort, good quality and clear visibility.
- Positive themes: Some customers say the mask works well for different activities, including extended sea use.
- Mixed feedback: Reports about leakage differ, with some customers saying it does not leak and others reporting water ingress.
- Mixed feedback: Customer views on fit are mixed.

## Frequently asked questions

### Is the Speedo Biofuse Mask adjustable?
Yes. The listing describes a push-button mechanism for easy adjustment and an updated split strap.
### Does it have an anti-fog coating?
Anti-fog is listed as a special feature, and the lens coating is specified as Anti-Fog Coating.
### Is the mask guaranteed not to leak?
No guarantee is established by the listing. Customer feedback is mixed, with some reporting no leaks and others describing water getting in while swimming.
### What materials are listed?
The listing specifies PC for the lens, frame and clips, and silicone for the gasket and strap.

## Alternative options

- [Winline Swimming Goggles for Adults,Anti Fog No Leakage Clear Vision UV Protection Comfortable,Professional Swim Goggles for Men Women](https://bargainpostbox.co.uk/visit/speedo-biofuse-adult-swim-mask)
- [ARENA Unisex Arena Unisex Goggles the One Mask Goggles \(pack of 1\)](https://bargainpostbox.co.uk/visit/speedo-biofuse-adult-swim-mask)
- [Cressi Skylight Goggles - 180 Degrees View Anti Fog Premium Swim/Pool Goggles - 100% Anti UV](https://bargainpostbox.co.uk/visit/speedo-biofuse-adult-swim-mask)
- [Speedo SPEFT Unisex Adult Biofuse Rift Mask Goggles](https://bargainpostbox.co.uk/visit/speedo-biofuse-adult-swim-mask)
- [Zoggs Horizon Flex Mask](https://bargainpostbox.co.uk/visit/speedo-biofuse-adult-swim-mask)

## Add-ons

- [Speedo Unisex-Adult Biofuse 2.0 Swimming Goggles \| Patented Easy Adjustment \| Anti-fog \| Anti-leak \| Enhanced Fit \| Improved Comfort Goggles](https://bargainpostbox.co.uk/visit/speedo-biofuse-2-adult-swimming-goggles)
- [Speedo Unisex Youth Biofuse Mask \| Dive \| Swim \| Ergonomic Design \| Open Water \| Leak Free](https://bargainpostbox.co.uk/visit/speedo-biofuse-adult-swim-mask)

## Images

![Speedo Biofuse Mask Adult Swim Mask — 1](https://bargainpostbox.co.uk/i/nF0iVzM3kR21ojY8ROM2tBCaZJJbeTQWm8MPUrEgxVa6r2PppyD5KRKXH8ucqw45vK0vUZUgd4PSMnZ4MFzSCd1inLXFPNmBuxFSzR5_U0EI36W5a_V6N6Fy.jpg)

![Speedo Biofuse Mask Adult Swim Mask — 2](https://bargainpostbox.co.uk/i/WULfqnXlhhp6TKp5yjapGb-DMzphaxXra7-hoQej3PiVcOumMQyOMZSmaBj3xFnDNen1-ICuuvp29SMG0qFXvwWyoEQATYnh2KcHRmj_MLXcvO6mQVhP5muk.jpg)

![Speedo Biofuse Mask Adult Swim Mask — 3](https://bargainpostbox.co.uk/i/Ie7fSYij1PQvEZvGgC9O2S_wfk727fSUfoVE_Ccgz5_Lsr4DW26o5-K0eCsBw279gZBZ0Kx5_fVRVUAZiRDlbmhbD1A0NDokrNXHFwvj1toyTvpoVLJ6TLwb.jpg)