Speedo Biofuse Mask for Open Water: Ergonomic Dive and Swim Mask
Product description
What it is
The Speedo Biofuse Mask is a unisex swim mask designed for both pool and open-water use. It features a unique curved lens to offer a broader field of view, aligning with Speedo’s second-generation mask design. The soft, flexible silicone skirt aims to deliver comfort and a secure fit over extended sessions.
How it feels on and fit notes

The silicone skirt is gentle on the skin and aims to reduce leakage while keeping pressure even around the cheeks and nose. A revised split strap setup is intended to provide enhanced comfort and easier adjustment, so you can keep the mask in place without constant fiddling during a session.
Visual performance and practical use


The curved lenses are designed to maximise peripheral visibility, which can be helpful when sighting lanes in a crowded pool or spotting buoys in open water. The open-water emphasis suggests it aims to balance a wide view with a snug, water-tight seal.

Adjustability and convenience
A push-button mechanism allows for quick adjustments, which may be handy when you need to reseal or re-fit between sets or after a swim break. An anti‑fog feature is noted, which can help maintain clarity, though performance may depend on usage and environment.
Who it suits

If you prioritise a wider field of vision and a comfortable seal, this mask could suit casual swimmers and those transitioning between pool and open-water swims. The open-water framing hints at versatility, rather than being a pure pool-only option.


Where it might fall short
No product is perfect for everyone. The effectiveness of the anti-fog treatment and the comfort of the silicone skirt can vary with face shape and water conditions. Those who need the lightest-weight mask or a very specific facial fit might prefer alternatives with more adjustable features or different silicone hardness.

Buying considerations
Before purchase, check that the mask feels comfortable when pressed against the face with a few breaths, and that the strap tension holds without over-tightening. If you expect to use it primarily for long sessions in choppy open-water conditions, consider whether the field-of-view and the fit stay reliable under movement.
Practical usage example



Imagine a crisp early morning open-water swim: you glide in, the mask settles with a soft whisper of silicone on the skin, and you notice more of the surroundings thanks to the curved lenses. The split strap stays in place as you turn your head to sight buoys and wave patterns. A quick press of the push-button and you’re ready for the next lap.
What to review before buying
Try it on if possible. Ensure the mask sits evenly without gaps around the nose, confirm the strap isn’t restricting head movement, and test the quick-adjust feature to see how easy it is to re-seal mid-swim. Remember that anti-fog performance is partly dependent on care and handling after purchase.

Quick FAQ
- Is this mask suitable for open water? Yes, it’s marketed with open-water swimming in mind and aims to offer a wide field of view.
- Does it have anti-fog protection? It is described as anti-fog, though performance may vary with use and care.
- can I adjust the fit quickly during a swim? The push-button adjustment is designed for easier fit changes during sessions.
Should you buy it?
It’s a sensible pick if you value a broader view without compromising comfort and you want a mask that works reasonably well in both pool and open water. If you prioritise minimal weight, very tight face-fitting seals, or a more customised facial fit, you may want to look at other options. Overall, for everyday training and mixed-use swims, this mask offers practical features and a practical price point.
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