RIO 139
Buy 1 get 1 free
∞ Lifetime guarantee · 30-day returns
The CIRCULR Standard
| Lens | Polarised TAC, Category 3 |
| UV protection | 100% UVA + UVB, verified |
| Impact test | Passed · drop tested |
| Hinge cycles tested | 10,000+ |
| Fit class | Regular |
Size guide
Narrow — lens width under 46mm. Best for smaller or slimmer faces.
Regular — lens width 46–52mm. Fits most faces; if in doubt, start here.
Wide — lens width over 52mm, longer temples. Best for broader faces.
Every frame's exact lens, bridge and temple measurements are listed under Details + sizing. Wrong fit? Returns are free within 30 days.
Details + sizing
Grey round acetate sunglasses.
✓ Impact Resistant Lenses
✓ 100% UVA & UVB Protection
✓ Polarised Lenses
✓ LIFETIME GUARANTEE
Lens colour: Translucent Blue
Frame colour: Translucent Grey
Size Guide
A.Nose Bridge: 25mm
B.Lens Width: 46mm
C.Temple Length: 149mm
Includes: Protective Vegan Leather Case
Includes: Premium Cleaning Cloth and Pouch
Shipping + returns
Fast, duty-paid shipping worldwide. 30-day risk-free returns. Lifetime guarantee: any manufacturing fault, for life. Email our CX team and we replace your shades free of charge.
Why pay £200?
This frame vs. a £200 designer pair
| CIRCULR | Designer equivalent | Petrol-station shades | |
|---|---|---|---|
| Polarised lens | ✓ | Paid upgrade | ✗ |
| UVA + UVB verified | ✓ | ✓ | ✗ |
| Published test results | ✓ | ✗ | ✗ |
| Guarantee | Lifetime | 2 years | None |
| Price | 2 pairs · £49.99 | £200+ | £10 |
Verified reviews
4.8 from verified buyers
"Feel far more expensive than they are. The metal arms make them. Got the brown and the black in the two-pair deal."
"Wore them all holiday in Ibiza. Zero glare off the water, case survived the suitcase. Already ordered a second pair."
"Great lenses for the price. Slightly snug on a wider face, wish I'd checked the fit class first. Swapped free within 30 days."
Questions, answered
Are the lenses really polarised?
Yes. Every CIRCULR lens is polarised as standard and verified for 100% UVA and UVB protection. Test results are published on every product page.
How does the offer work?
Buy one pair and get a second free, automatically. Add three pairs and 50% comes off everything, with free shipping. No code needed.
What does the lifetime guarantee cover?
Any manufacturing fault, for life. Email our CX team and we replace your shades free of charge. Loss, theft and third-party damage are not covered.
Which fit am I?
Every frame is classed Narrow, Regular or Wide with exact measurements listed. Most people are Regular. If it's wrong, returns are free within 30 days.
How fast is shipping?
Fast, duty-paid shipping worldwide. You pay nothing extra on delivery.