Eyeglasses
Theory-FL04
Frais de livraison calculés au moment du paiement.
- Free shipping over €99
- 14-day frame returns
- 3-month warranty
IGIOO Theory-FL04 Clear Blue Round Eyeglasses
IGIOO 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 IGIOO'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.
Shipping & returns
Free worldwide shipping on orders over €99. Non-prescription glasses ship within 2–3 days, prescription glasses within 2–8 days. You can return a frame within 14 days. Prescription lenses are made to order for you, so they can’t be returned – if you send back prescription glasses, we refund the frame. See returns & exchange and shipping & tracking.
Care & warranty
Every pair comes with a 3-month warranty against defects in materials and workmanship. Clean your lenses with the included cloth and keep your glasses in their case when you are not wearing them.

Theory-FL04
Theory-FL04
Lenses made for you
Single vision, progressive, reading or plain – then blue light, light-adaptive or sun lenses. You choose everything in the next step.
14-day frame returns
Not the right look? Return the frame within 14 days. Prescription lenses are made just for you, so only the frame is refunded.
3-month warranty
Every pair is covered against defects in materials and workmanship for 3 months.
Find your fit.
- ALens width
- 50 mm
- BBridge
- 23 mm
- CLens height
- 42 mm
- DFrame width
- 144 mm
- Temple length
- 145 mm
- Material
- Acetate
- Shape
- Round
Compare with a pair you already own – the sizes are printed inside the temple. Not sure? Ask us.
Questions about size or lenses?
Send us your prescription or a photo of your current glasses – we help you choose the right frame and lenses.



