Fuse Lenses logo
Fuse Lenses logo

All articles

Finding Your Frame, Model Identification, & Custom Lens ProgramUpdated 2 hours ago

Step 1: Identifying Your Frame & Eye Size

To search our website or verify fit, the two most critical pieces of information printed inside your frame's temple arm are the Model Name/Number and the Lens/Eye Size.

Information TypeWhat to Look ForWhy It Matters
Model Name or NumberSeries of numbers, words, or a combination (e.g., Holbrook, RB2140, MJ-103).Identifies the exact frame shape and temple design.
Lens / Eye Size (mm)A 2-digit number (typically 40mm to 62mm) located before a small square symbol (□).Most Important Measurement: Represents the horizontal width of the lens.
Bridge & Temple LengthThe 2-digit number after the square symbol (□) and the 3-digit number at the end.Indicates bridge width and arm length (generally not needed for lens selection).

Size Decimal Variations: Manufacturers occasionally round eye-size numbers on frame temples. If your physical measurement or temple printing differs by a few decimal points (e.g., 57.5mm vs. 58mm), replacement lenses will still fit securely.

Step 2: Searching FuseLenses.com

  1. Use the Search Bar: Enter your frame model name or number in the search bar on FuseLenses.com.

  2. Match the Eye Size: Verify that the eye size (in mm) listed on our product page matches the lens width printed inside your frame.

  3. Check Variations: Older sunglasses or frames manufactured in different years/countries may have slight sizing variations. Always double-check eye size before placing an order.

Step 3: What to Do If Your Frame Isn't Listed (Custom Lens Program)

If your sunglass model is not listed on our website, US residents can take advantage of our Custom Concierge / Custom Tracing Program!

How the Custom Program Works

  • Cost: $30.00 (covers round-trip prepaid shipping and custom lab processing) + the price of your chosen replacement lenses.

  • Process: We email you a prepaid shipping label. Mail your physical frames to our Palm Harbor, Florida lab, where our technicians will custom-trace, cut, and mount your new lenses before shipping them back to you.

Frame Style Limitations (Ineligible Frames)

While we can custom-trace thousands of unique frames, our lab cannot process the following frame styles at this time:

  • Drill-mount / Rimless frames (where lenses are screwed directly into metal posts without an outer frame channel)

  • High-wrap lenses with a curvature greater than 8-base

  • One-piece or shield-style single lenses

  • Certain semi-rimless frame styles

Need Help Identifying Your Frames?

If your frame markings are worn off or you aren't sure which model you own, our Customer Support team can identify them for you!

What to send in your email to Support:

  1. Clear photo or typed transcript of all text inside both temple arms.

  2. Clear photos of the front and sides of your sunglasses.

Frequently Asked Questions

  • Can I get custom lenses if my sunglasses aren't listed on the website?

    • Yes! US customers can use our Custom Lens Program for $30 (shipping included) plus the cost of the lenses. We provide a prepaid shipping label so our lab can custom-trace your frames.

  • What is the most important number printed on my sunglasses?

    • The lens width/eye size (the 2-digit number in millimeters located right before the square symbol) is the most critical measurement for finding matching replacement lenses.

  • Are there any frame styles Fuse cannot make lenses for?

    • Yes. We cannot process drill-mount frames, single shield/one-piece lenses, lenses with a curvature over 8-base, or certain semi-rimless frames.

If you've checked out our available listings and can't find your frame, check out our custom program! 

If you are a U.S. Resident, we offer a custom program where we can email you a shipping label for your frame for an additional $30. 

Was this article helpful?

Contact Us

  • Contact Us
    Need help finding lenses or have an issue with the lenses you have received? We are here to help Monday-Friday 9-5pm EST
    • For faster service, please provide any important information such as:
    • Model info/Lens size listed/photos
    • Updated address
    • Any pertinent information that may be needed