A stylish, multi-sport sunglass similar to the Flak and available in Rx? The Oakley BiSphaera definitely caught the attention of our Sports Opticians. Keep reading for our in-depth evaluation of the performance frame, and how it compares to the Sphaera and Flak 2.0 XL. Find out if it's the right sport sunglass for you in our Oakley BiSphaera Review.

Oakley BiSphaera Review at a Glance

Things We Love:

  • Prescription-friendly
  • PRIZM™ lenses
  • Hat/Helmet compatible
  • Easy lens interchangeability
  • Multi-sport use
  • Semi-rimless design
  • Thin temples

Things to Know:

  • Stiff nose pads
  • Slightly larger than Flak 2.0 XL
  • Not ideal for cyclist aero position

Oakley BiSphaera Review

1. Oakley BiSphaera Overview
2. Oakley BiSphaera vs Sphaera
3. Oakley BiSphaera vs Flak 2.0 XL
4. FAQs
5. Why Trust SportRx

Oakley BiSphaera Overview

The Oakley BiSphaera is a multi-sport sunglass with a sleek and modern design. It launched at the same time as its shield counterpart, the Sphaera, but features two lenses instead of one. As a sport frame, the BiSphaera has a wrap around design that’s prescription-compatible. Following in the fan-favorite Flak 2.0 XL’s footsteps, this sunglass has all the performance features you need—with added style. The cutting-edge design paired with contrast-enhancing PRIZM™ lenses gives you a confident, competitive edge.

Like most Oakley sport frames, the BiSphaera is made of durable O Matter™ material that lasts wear after wear. When you’re working up a sweat, Unobtanium™ anti-slip grip material on the nose pads and temples keeps this sunglass steady, so you don’t have to worry about constant readjusting. It has thin and flexible temples which easily work with any hat or helmet. The semi-rimless design is ideal for sports like golf, and offers the option of lens interchangeability.


Oakley BiSphaera in Matte Black with PRIZM™ Golf lenses

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Oakley BiSphaera vs Sphaera

As seen on players in the 2024 NFL Pro Bowl and Olympic athletes, the Sphaera is a popular new Oakley sunglass. It features a shield design with only one lens. Therefore, one of the biggest differences between the two frames is that the Sphaera is not available with prescription. Additionally, it is not available with interchangeable lenses like the BiSphaera is. The Sphaera also has a larger fit and taller lens height than the BiSphaera. This makes it a better option for cyclists, as it has better visibility in the aero position. Finally, some say the nose pads on the Sphaera are more comfortable than those of the BiSphaera.

The Sphaera comes with some innovative features that further set it apart. The first is the vent port at the top of the frame which allows for air flow and keeps your shield fog-free. The next, is the unique temple design. The temples feature an angular cut-out for your fingers to easily remove the frame from your face. To learn more about the similarities and differences between these two sport sunglasses, watch our Oakley Sphaera vs BiSphaera video below.

BiSphaera Measurements:

  • Lens Width: 68mm
  • Lens Height: 41mm
  • Bridge Width: 12mm
  • Temple Arm Length: 136mm

Sphaera Measurements:

  • Lens Width: 160mm
  • Lens Height: 50mm
  • Bridge Width: 19mm
  • Temple Arm Length: 130mm

Oakley Sphaera in Matte Black with PRIZM™ Road lenses

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Oakley BiSphaera vs Flak 2.0 XL

Both the BiSphaera and Flak 2.0 XL are prescription compatible multi-sport frames. Those with a high prescription might want to try the Flak 2.0 XL. It has a high Rx dock option that accommodates stronger prescriptions. Because of the sleek, futuristic design, the BiSphaera doesn’t look as sporty as the Flak 2.0 XL. While it clearly is a sport frame, you can tell the cool aesthetics of the BiSphaera weren’t forgotten in the design process.

The BiSphaera features thinner temples, making it more compatible with hats and helmets than the Flak 2.0 XL. Due to the nose pads on the BiSphaera, some people find the Flak to be the more comfortable sunglass. For cyclists, the Flak 2.0 XL offers better visibility in the aero position than the BiSphaera. Watch our BiSphaera vs Flak 2.0 XL video below for more details on how these frames compare.

BiSphaera Measurements:

  • Lens Width: 68mm
  • Lens Height: 41mm
  • Bridge Width: 12mm
  • Temple Arm Length: 136mm

Flak 2.0 XL Measurements:

  • Lens Width: 59mm
  • Lens Height: 39mm
  • Bridge Width: 16mm
  • Temple Arm Length: 125mm

Oakley Flak 2.0 XL in Polished Black with PRIZM™ Sapphire Polarized lenses

Shop Oakley Flak 2.0 XL


What sport is the BiSphaera good for?

The BiSphaera is a multi-sport sunglass that works well for a variety of activities, similar to the Flak 2.0 XL. It is great for golf, running, baseball, hiking, and more.

Is the BiSphaera available with prescription?

Yes! The BiSphaera is available with prescription. Get your prescription in your favorite Oakley PRIZM™ lenses. Or, customize the BiSphaera with progressive lenses, Transitions® lenses, and more at SportRx.

Can you change the lenses on the BiSphaera?

Yes, the BiSphaera offers interchangeable lenses. It is fairly easy to change the lenses on the BiSphaera.

What if I don't like the Oakley BiSphaera once I receive it?

We hope this doesn’t happen, but understand if it does. Your purchase—prescription or not—is covered by our See Better Guarantee. You have 45 days to return your frame for a full refund or exchange.

Can I use my FSA or HSA funds on the Oakley BiSphaera?

Yes! Prescription BiSphaera sunglasses are an eligible FSA/HSA expense. Just fill out your health card information like you would a credit card online at check-out.

Why Trust SportRx

Started in 1996, SportRx has over 25 years of experience in the sports eyewear industry. With a highly respected brand catalog as well as our own line of prescription sports eyewear, we’ve spent decades learning what makes the best sport sunglasses. We’ve also learned what makes prescription sports eyewear fall short—whether it’s lenses that fog up, a brow line that crashes with the brim of your hat, or a sport frame that isn’t compatible with a high Rx. We’ve seen it all and are eager to help you avoid these issues and more. In addition to our optical knowledge, our Sports Opticians share the same passions and pursuits as you. So when you need help finding the best sunglasses for fly fishing, we’ll put you in touch with our in-house angler to help you build your perfect pair.

Free Shipping & Free Returns at SportRx

We know shopping online can feel like a gamble. That’s why we offer free shipping and free returns. Try your frames for 45 days. If you aren’t satisfied, send them back to us for a full refund, free of charge. It’s our See Better Guarantee. Still have questions about our Oakley BiSphaera Review? Give us a call. Our Sports Opticians are standing by, ready to assist you.