FLEXIT 6045
$ 198
A unisex rectangular frame in black or grey.
- Size: 55-18-145 mm, lens depth 35 mm
- Colours: Black, Grey
- Case & microfibre cloth included
- Lenses made in our UK labs
- Delivered across Australia
- Free 30-day returns
About the FLEXIT 6045
FLEXIT 6045 Prescription Glasses
A clean rectangular frame works at the office, at home and everywhere in between. The FLEXIT 6045 is a unisex full-rim metal rectangular frame, sized 55-18-145, in Black or Grey. You can order it with single vision, progressive or bifocal lenses made to your prescription. You will find it in our Flexit collection.
Black or Grey: which one is you?
Black. Black is a deep, solid black. It is the safest choice if you only want one pair, and it never looks out of place.
Grey. Grey is a soft, neutral grey. It is a quiet, professional finish that works with navy, charcoal and white.
If you are stuck between two, choose the one closest to the colours you wear most. You can always add a second pair later.
Design details
Rectangular lenses suit round and oval faces, adding a bit of definition. Metal lets the frame stay slim and light while keeping its shape.
Whether it is your main pair or a spare, the FLEXIT 6045 is easy to live with.
Wearing it every day
Choose the colour closest to what you wear most and it will go with almost everything.
How it fits
| Brand | Flexit |
|---|---|
| Colours | Black, Grey |
| Frame size | 55-18-145 mm (lens width, bridge, arm length) |
| Lens depth | 35 mm |
At 55mm per lens, it is a generous size, a good pick if standard frames feel tight. The 18mm bridge is average. The 145mm arms are on the longer side, which suits larger heads. Across the lenses and bridge it measures about 128mm.
To check the fit, look at the three numbers printed inside the arm of glasses you already own. If they are within two or three millimetres, this frame should feel similar.
Lens options for the FLEXIT 6045
Your optometrist’s prescription will usually tell you which of these you need:
- Progressive lenses for clear vision at every distance without swapping pairs.
- Single vision for one job done well: driving, reading or desk work.
- Bifocal if you like a clearly marked reading section.
- Ready readers when you only need help close up.
The 35mm lens depth works with single vision, bifocal and many progressive lenses. Prefer to keep things slim? Choose a high-index lens, which is thinner and lighter than standard. Then add an anti-reflective coating to cut glare from headlights and screens.
What you need to order
Have your prescription handy before you start. It will list the sphere, cylinder and axis for each eye, and often your PD as well. If your PD is missing, your optometrist can give it to you. Then simply choose your colour and lens type, enter your prescription and add any extras, such as a thinner lens or a coating. You can review everything in your cart before you pay.
Made for you in our UK lab
Every pair is made to order. Our UK optical lab cuts your lenses to your prescription, fits them into your FLEXIT 6045 and then sends your glasses to you in Australia.
Looking after them
Wipe your lenses with a microfibre cloth rather than the hem of your shirt, keep them in a case when they are in your bag, and never leave them on the dashboard on a hot day. Our lens care guide has a few more habits worth picking up.
Your questions, answered
Can I get progressive lenses in the FLEXIT 6045?
Yes. The 35mm lens depth gives progressive lenses enough height for all three vision zones.
Can I use the FLEXIT 6045 as computer glasses?
Yes. Single vision lenses set to your screen distance, or progressive lenses if you also need distance vision, both work well for desk work.
Is it a large frame?
Yes. With 55mm lenses it suits wider faces.
Where are my lenses made?
In our UK optical lab. They are cut to your prescription, fitted into your frame and then sent to you in Australia.
Want to compare? See more prescription glasses.
Lens prices
Lens types
| Lenses | Single Vision | Bifocal | Varifocal |
|---|---|---|---|
| 1.5 Index (standard) | FREE | $40 | $69 |
| Transitions | $50 | $90 | $119 |
| Sunglasses tint | $10 | $50 | $75 |
| Blue light filter | $30 | $70 | $99 |
Basic 1.5 Single Vision lenses with anti-reflection coating are included in the frame price.
Thinner lens upgrades
| Lens index | Single Vision | Bifocal | Varifocal |
|---|---|---|---|
| 1.6 + HMC | $30 | $70 | $95 |
| 1.67 + HMC | $50 | $90 | $119 |
| 1.74 + HMC | $70 | – | $135 |
Higher index lenses are thinner and lighter, and are worth it for stronger prescriptions. All include an HMC coating.
Frame details & size guide
Specifications
| Brand | Flexit |
|---|---|
| Bridge Size | 18 |
| Color | Black, C1-GREY |
| Eye Size | 55 |
| Lens Depth | 35 |
| Temple Length | 145 |
How to read frame sizes
The three numbers (for example 48-20-140) are the lens width, the bridge and the arm length in millimetres. Compare them with a pair you already own.

Delivery, returns & what is included
Delivery
- Single Vision: 5-7 working days
- Bifocal: 7-10 working days
- Varifocal: 7-10 working days
- Dispatched within 48 hours by tracked Royal Mail service
Delivery to Australia: the cost and your estimate are shown at checkout before you pay.
Returns & exchanges
Free 30-day returns or exchanges. If your glasses are not right for you, we will make it right.
What is included
- Anti-reflection lenses included
- Case and microfibre cloth
- Lenses made in our UK optical lab
- All frames CE marked
- Worldwide delivery
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