L.K.Bennett 20
£ 94 Original price was: £ 94.£ 69Current price is: £ 69.
A slim designer frame from L.K.Bennett with contrast arms, in red, navy with tortoiseshell, or brown with nude.
- Size: 52-16-135 mm
- Frame: Full Rim
- Colours: Brown / Nude, Navy / Tort, Red
- Case & microfibre cloth included
- Lenses made in our UK labs
- Free delivery
- Free 30-day returns
About the LK Bennett L.K.Bennett 20
L.K.Bennett 20 Prescription Glasses
The best designer frames have a small detail that makes you look twice. On the L.K.Bennett 20, it is the contrast between a slim metal front and patterned arms. This women’s full-rim frame comes in red, navy with tortoiseshell, or brown with nude, and it can be made up with single vision, varifocal or bifocal lenses to your prescription.
Three colours, three moods
Red is the confident choice: a rich, wine-red front that brightens the face and looks fantastic with dark hair and neutral outfits.
Navy with tortoiseshell is polished and easy to wear. The deep navy front reads almost as dark as black, while the tortoiseshell arms add warmth.
Brown with nude is the softest of the three. The brown front blends with warm skin tones, and the tortoiseshell and nude arms give it a gentle, elegant finish.
Slim, refined and light
The metal front is fine and lightweight, with a soft rectangular shape that suits oval, round and heart-shaped faces. The L.K.Bennett name sits discreetly on the arm.
Who it suits
The soft rectangle balances rounder faces and adds a little definition to oval ones. It is an easy, elegant frame for work, and the red version is a fun way to bring colour into a neutral wardrobe.
Size and fit
| Brand | LK Bennett |
|---|---|
| Frame | Full Rim |
| Colours | Brown / Nude, Navy / Tort, Red |
| Frame size | 52-16-135 mm (lens width, bridge, arm length) |
| Designed for | Women |
The 52mm lenses make the L.K.Bennett 20 a medium frame. The 16mm bridge is on the narrow side, and the 135mm arms are a standard length. Compare these numbers with the ones printed inside the arm of your current glasses.
Lens options for the L.K.Bennett 20
Choose the lens type that suits how you use your glasses:
- Single vision: one prescription for distance, reading or the computer.
- Varifocal: near, middle and far in one lens with no line.
- Bifocal: a defined reading area at the bottom of the lens.
- Ready readers: simple magnification for close work.
If your prescription is on the stronger side, a thinner high-index lens keeps the edges neat, and an anti-reflective coating means fewer distracting reflections on screens and at night.
Before you order
Check that your prescription is current; an eye test every couple of years is a good habit, and your optician will tell you how often you need one. You will also need your PD, which tells the lab where to centre the lenses so you look through the right spot. With those two things in hand, ordering takes just a few minutes: choose your colour, pick your lenses, enter your details and you are done.
From our lab to you
Every pair is made to order. Our UK optical lab cuts your lenses to your prescription, fits them into your L.K.Bennett 20 and checks every pair before it leaves our lab.
Keep them looking new
Rinse off dust before wiping, dry the lenses with a clean microfibre cloth, and take your glasses off with both hands so the arms stay straight. For more tips, see our lens care guide.
FAQs
Which colour is the most versatile?
Navy with tortoiseshell. It works with almost everything and looks just as smart as black, only softer.
Can I wear the L.K.Bennett 20 for driving?
Yes. Single vision or varifocal lenses work well for driving, and an anti-reflective coating helps cut glare from headlights and wet roads at night.
Can I get the L.K.Bennett 20 with varifocal lenses?
Yes. Choose varifocal lenses when you order, along with single vision, bifocal or ready readers.
Is it a large or small frame?
It is a medium fit with 52mm lenses and a 16mm bridge.
Who glazes my lenses?
Our own optical lab in the UK. Your lenses are made to your prescription and fitted into the frame before your glasses are sent to you.
See more designer frames from L.K.Bennett or browse all women’s 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 | Brown / Nude, Navy / Tort, Red |
|---|---|
| Brand | LK Bennett |
| Bridge Size | 16 |
| Eye Size | 52 |
| Temple Length | 135 |
| Type | Optical |
| Rim | Full Rim |
| Wearer | Women |
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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