SAK1021T
£ 99
A unisex rectangular frame in black or dark gun. Semi-rimless with an open lower edge.
- Size: 54-18-140 mm, lens depth 35 mm
- Colours: Black, Dark Gun
- Case & microfibre cloth included
- Lenses made in our UK labs
- Free delivery
- Free 30-day returns
About the Sakuru SAK1021T
SAK1021T Prescription Glasses
If you want glasses that look smart and get out of the way, a rectangle is hard to beat. The SAK1021T is a unisex full-rim metal rectangular frame, sized 54-18-140, in Black or Dark Gun. You can order it with single vision, varifocal or bifocal lenses made to your prescription. You will find it in our Sakuru range.
Black or Dark Gun: 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.
Dark Gun. In Dark Gun, the frame is gunmetal. It is a great match for cooler skin tones and a crisp, tidy look.
Each colour is shown in the gallery, so you can compare them side by side before you decide.
The details
Rectangular lenses suit round and oval faces, adding a bit of definition. Being semi-rimless, it keeps a defined top line while the lower half of the lens stays open and light.
The slim metal construction keeps it light and neat, and it is easy for an optician to adjust.
Whether it is your main pair or a spare, the SAK1021T is easy to live with.
Wearing it every day
Keep the rest of your look simple and let the frame do the talking. It works just as well with workwear as it does with weekend clothes.
How it fits
| Brand | Sakuru |
|---|---|
| Colours | Black, Dark Gun |
| Frame size | 54-18-140 mm (lens width, bridge, arm length) |
| Lens depth | 35 mm |
The 54mm lenses put it at the upper end of medium. The 18mm bridge is average. The 140mm arms are a standard length. Across the lenses and bridge it measures about 126mm.
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 SAK1021T
Choose the lens type that suits how you use your glasses:
- Varifocals if you want to see near and far without swapping glasses.
- Single vision for one task done well, such as driving, reading or screen work.
- Bifocals if you prefer a clearly defined reading area.
- Ready readers for straightforward close-up help.
The 35mm lens depth works with single vision, bifocal and many varifocal lenses. If your prescription is high, a high-index lens keeps things thin. An anti-reflective, scratch-resistant coating is a sensible extra for everyday wear.
What you will need
Have your prescription to hand before you start. It shows the sphere, cylinder and axis for each eye, and sometimes your PD. If the PD is missing, your optician can give it to you. Then choose your colour and lens type, enter your prescription and add any extras, such as thinner lenses or a coating. You can check everything in your basket before you pay.
Made for you in our UK lab
Every pair is made to order in our own UK lab. Your lenses are cut to your prescription, fitted into your SAK1021T and checked by our technicians before they are sent out.
Keep them looking new
Rinse off any grit before you wipe, dry the lenses with a clean microfibre cloth, and take your glasses off with both hands so the arms stay aligned. See our lens care guide for more.
FAQs
Can I get varifocal lenses in the SAK1021T?
Yes. The 35mm lens depth gives varifocal lenses enough height for all three vision zones.
Is the SAK1021T comfortable for all-day wear?
Yes. It is a lightweight frame, and a thinner lens for a stronger prescription keeps the weight down even further.
What size is it?
It is size 54-18-140: 54mm lens width, 18mm bridge and 140mm arms, a medium fit.
What does semi-rimless mean?
The frame runs along the top of the lenses only. The lower edge is held by a fine line, so the bottom of the lens is open.
Do you make the lenses yourselves?
Yes. Every pair is made to order in our UK optical lab, where your lenses are cut to your prescription and fitted into your frame.
Want to compare? See more prescription glasses.
Lens prices
Lens types
| Lenses | Single Vision | Bifocal | Varifocal |
|---|---|---|---|
| 1.5 Index (standard) | FREE | ÂŁ40 | ÂŁ69 |
| Transitions | ÂŁ50 | ÂŁ90 | ÂŁ119 |
| Sunglasses tint | ÂŁ10 | ÂŁ50 | ÂŁ75 |
| Blue light filter | ÂŁ30 | ÂŁ70 | ÂŁ99 |
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 | ÂŁ30 | ÂŁ70 | ÂŁ95 |
| 1.67 + HMC | ÂŁ50 | ÂŁ90 | ÂŁ119 |
| 1.74 + HMC | ÂŁ70 | – | ÂŁ135 |
Higher index lenses are thinner and lighter, and are worth it for stronger prescriptions. All include an HMC coating.
Frame details & size guide
Specifications
| Color | Black, Dark Gun |
|---|---|
| Eye Size | 54 |
| Bridge Size | 18 |
| Lens Depth | 35 |
| Temple Length | 140 |
| Brand | Sakuru |
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 is free. Your estimate for your country is shown at checkout.
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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