Eyeglasses
Theory-FL01
Shipping calculated at checkout.
- Free shipping over €99
- 14-day frame returns
- 3-month warranty
Theory FL01: Black Round Acetate Eyeglasses
Theory FL01 takes the classic round frame and keeps it simple: solid black acetate, a full rim around each lens and a keyhole bridge that nods to vintage eyewear. The result is a pair that feels a little bookish in the best way, yet is clean enough for everyday wear.
This is a unisex frame in size M with a 50 mm lens width, so it fits most medium faces for men and women. Round lenses are a popular choice for softening angular features such as a strong jaw. Black works with everything, from a crisp work shirt to a hoodie, and makes a dependable first pair or a reliable backup. Add prescription, blue light or reading lenses in our lens selector when you order.
Frame Measurements
- 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-FL01
Theory-FL01
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.
