Three Banana
£ 29
A unisex round frame in black. Decorative arms.
- Frame: Full Rim, Plastic
- Colours: Black
- Case & microfibre cloth included
- Lenses made in our UK labs
- Free delivery
- Free 30-day returns
About the Top banana Three Banana
Three Banana Prescription Glasses
A round frame is an easy way to add a little character. The Three Banana is a unisex full-rim plastic round frame in Black. You can order it with single vision, varifocal or bifocal lenses made to your prescription. It is part of our Top Banana range.
Colour and finish
Black. Black is a deep, solid black. It defines the eyes and goes with every outfit you own.
The details
Round frames soften angular features, so they are a great match for square and heart-shaped faces. The arms carry a decorative pattern that adds a bit of jewellery to the frame.
A patterned front adds personality while still being easy to wear. The plastic frame is light on the nose and comfortable for all-day wear.
The Three Banana is a great everyday frame: smart enough for work and relaxed enough for the weekend.
How to wear it
Because it is unisex, it is easy to share the look across the household. Pick the colour that matches your wardrobe rather than worrying about who it is designed for.
How it fits
| Brand | Top banana |
|---|---|
| Frame | Full Rim, Plastic |
| Colours | Black |
| Designed for | Unisex |
At 50mm per lens, it is on the smaller side, which is ideal if most frames feel too wide.
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 Three Banana
Pick the lenses that match your prescription:
- Single vision: one prescription across the whole lens, for distance, reading or the computer.
- Varifocal: near, intermediate and distance in one lens, with no visible line.
- Bifocal: a separate reading segment in the lower part of the lens.
- Ready readers: simple magnification if you just need help with close work.
Want lighter lenses? A high-index lens is thinner than standard plastic. Pair it with an anti-reflective coating for less glare when you drive after dark.
Ordering online is simple
You need a valid prescription from your optician and your pupillary distance (PD), the distance between your pupils. Many opticians include your PD on the prescription; if yours does not, just ask for it. Choose your colour, pick your lens type, enter your details and add any lens upgrades. If you are unsure about size, compare the measurements above with a pair you already wear.
Made for you in our UK lab
Pick your colour and lenses, add your prescription and PD, and our UK lab cuts your lenses and fits them into your Three Banana. Every pair is checked before it leaves us.
A little care goes a long way
Clean your lenses with a microfibre cloth rather than your jumper, keep them in their case when they are in your bag, and do not leave them on a sunny car dashboard. Our lens care guide has more tips.
Everyday wear
Good everyday glasses should be comfortable from breakfast to bedtime. Light materials, a secure fit and a classic look all help, and this frame ticks those boxes. Add the right lenses and it will handle screens, reading and driving with ease.
Questions we often get
Is it a small frame?
Yes. With 50mm lenses it suits smaller faces.
Is the Three Banana 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.
Is it unisex?
Yes. It suits men and women.
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.
Still deciding on the Three Banana? Browse 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
| Color | C2-BLACK 50×20 |
|---|---|
| Eye Size | 50 |
| Material | Plastic |
| Brand | Top banana |
| Wearer | Unisex |
| Type | Optical |
| Rim | Full Rim |
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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