Theory-FL04
- Size: M
- Color: Blue
- Weight: 28g
- Material: Acetate
- Shape: Round
Not sure about your size? Frame Size Guide
Frame Size
- Frame Width: 144 mm
- Bridge width: 23 mm
- Lens Width: 50 mm
- Lens Height: 42 mm
- Temple Length: 145 mm
- Frame Width: 5.67 in
- Bridge width: 0.91 in
- Lens Width: 1.97 in
- Lens Height: 1.65 in
- Temple Length: 5.71 in
Frame measurements
- 50 mm
- 23 mm
- 42 mm
- 144 mm
- 1.97 in
- 0.91 in
- 1.65 in
- 5.67 in
About Theory-FL04 Eyeglasses
CARFIA Theory-FL04 Clear Blue Round Eyeglasses
CARFIA Theory-FL04 is a unisex round acetate eyeglasses frame in clear blue, listed in size M. Its full-rim design combines a retro-inspired silhouette with a fresh touch of color for men and women.
Make blue your everyday accent: pair these round frames with a white shirt for work, then switch to a soft sweater for a relaxed weekend look. The clear blue color brings personality to familiar outfits.
Design and Material
- Clear blue color: A fresh alternative to traditional neutral frames.
- Acetate frame: Full-rim construction that surrounds each lens.
- Round shape: A retro-inspired look for everyday styling.
- Unisex design: An eyewear option for men and women.
Frame Size: 50–23–145 mm
- Listed size: M
- Lens width: 50 mm
- Bridge width: 23 mm
- Temple length: 145 mm
- Overall frame width: 144 mm
- Lens height: 42 mm
Compare these measurements with a pair you already wear comfortably. The 50–23–145 sizing refers to lens width, bridge width and temple length, not overall frame width.
Is Theory-FL04 Right for You?
Choose this frame if you want round blue eyeglasses with a full-rim acetate design. For styling contrast, the rounded shape is an option to consider alongside angular features. Your frame measurements and bridge fit matter more than a face-shape label alone.
Frequently Asked Questions
Are these round eyeglasses for men or women?
Theory-FL04 is a unisex frame designed for men and women.
What is the frame material?
The frame is made from acetate, with a round shape and full-rim construction.
What does size 50–23–145 mean?
It means a 50 mm lens width, 23 mm bridge width and 145 mm temple length. The overall frame width is 144 mm.
Can I order this frame with prescription lenses?
Theory-FL04 is listed in CARFIA's prescription eyeglasses range. Confirm the lens options offered for this frame and their suitability for your prescription before ordering.
Does blue refer to the lenses or the frame?
Blue describes the frame color. It does not specify lens tint, blue-light filtering or UV protection. Check the selected lens options for those features.
More Information To You
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Progressive Lenses
For the customer more than 40 years old, progressive lenses are perfect for near & farsightedness.

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