One pair, indoor clarity and outdoor comfort. The Rongchy ED0004-BS features photochromic lenses that darken in sunlight and fade back indoors — with nearsighted strengths from -0.50 to -4.00 built in, so there is no need to swap between two pairs.
- Photochromic lenses — darken outdoors in the sun, return to clear indoors, UV400 protection
- Semi rimless metal frame — lightweight rectangular silhouette with a premium electroplated finish
- Nearsighted strengths -0.50 to -4.00 — pick the option that matches your prescription
- Silicone nose pads — soft, skin-friendly support for all-day comfort
- Three finishes — Black, Gold and Silver, a unisex style for him and her
Measurements
| Lens Width | 54 mm / 2.13 in |
| Lens Height | 36 mm / 1.42 in |
| Nose Bridge | 18 mm / 0.71 in |
| Frame Total Width | 140 mm / 5.51 in |
| Temple Length | 144 mm / 5.67 in |
Not sure which strength to choose? Check your latest prescription or ask your eye care provider — then pick your color and strength above. Drive, commute and travel with one pair that adapts to the light around you.
Common questions
How do photochromic lenses work?
The lenses darken when UV light reaches them and clear again indoors, usually within 10 to 30 seconds in each direction. Because car windshields filter UV, they stay mostly clear behind the wheel.
Which colours can I order?
3 colourways are available: Black, Gold, Silver. All colourways share the same lens specification, so the choice is purely about how the frame looks on you.
How does the frame feel after a few hours?
This pair uses a metal front with spring-loaded temples, so it flexes slightly instead of pressing. The weight sits across the nose pads rather than the ears, which is what makes long sessions bearable.
How long does delivery take, and can I return the glasses?
Orders leave our warehouse with tracking, and shipping is free regardless of order value. Returns are accepted within 30 days of delivery, so you can try the frame at home before committing.
What is the best way to look after the lenses?
Use lukewarm water and a microfibre cloth rather than tissue, which can dull the anti-reflective layers over time. Store the glasses in the case provided so the lenses do not rub against a hard surface.
