Eyeglasses
Theory-FL03
Zzgl. Versandkosten, die an der Kasse berechnet werden.
- Free shipping over €99
- 14-day frame returns
- 3-month warranty
Theory FL03: Grey Round Acetate Eyeglasses
Theory FL03 is the round full-rim frame in a soft grey acetate, a calm alternative for anyone who finds black frames too strong. The neutral tone gives the face definition without drawing all the attention, and it pairs easily with both cool and warm colors.
The frame is unisex and sized M: 50 mm lenses, a 23 mm bridge, 145 mm temples and a 144 mm overall width. Those numbers suit most medium faces, but the best check is to compare them with glasses that already fit you. The grey refers to the frame, not to a lens tint. It is a relaxed, understated pair for work days, study and weekends. Add prescription, blue light or reading lenses in our lens selector when you order.
Specifications and Measurements
- Brand: IGIOO
- Model: Theory-FL03
- Frame color: Grey
- Frame material: Acetate
- Frame shape: Round
- Rim type: Full-rim
- Gender: Unisex
- Listed size: M
- Lens width: 50 mm
- Bridge width: 23 mm
- Temple length: 145 mm
- Frame width: 144 mm
- Lens height: 42 mm
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-FL03
Theory-FL03
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.



