Description
Soft blush indoors. Army-green attitude outdoors. The C4 is the colour-changing pair for people who want their eyewear to do something genuinely unexpected — a light pink frame that deepens into olive green the moment sunlight touches it, while the lenses shift from clear to sunglasses-dark.
Key Features
- A Colour Shift You Will Not See Elsewhere: light pink to olive green frame transition, one of the most distinctive photochromic colour stories in eyewear.
- Dual Transformation: frame and nylon lenses both change in the sun, from clear indoor glasses to dark transition sunglasses in seconds.
- Soft-Neutral Palette: pink and olive are easy-to-wear tones that complement warm and cool skin tones alike.
- Lightweight All-Day Build: 28.5 g injection acetate frame with smooth temples — comfortable from first coffee to last sunset.
- Conversation-Starting Style: a retro round shape with keyhole bridge plus a surprise colour change makes this a pair people ask about.
Description
Most photochromic glasses change their lenses. The C4 changes everything. Indoors you are wearing a delicate light pink frame — warm, flattering and perfectly unisex, with clear nylon lenses for effortless everyday vision. It is the kind of gentle colour that works with linen, denim, knits and everything in between.
Take it outside and the transformation begins: the blush front and temples deepen into a grounded olive green, while the lenses darken to a true sunglasses shade. Two completely different personalities, one frame — the eyewear equivalent of a reversible jacket, and it never fails to get noticed. Underneath the colour story is serious construction: lightweight injection acetate, retro round silhouette sized 49-22-145, and a featherweight 28.5 g total.
Perfect For
- Spring and autumn outings: the pink-to-olive shift matches seasonal palettes.
- Festivals and outdoor markets: a colour change your friends will want to film.
- Garden parties and picnics: blush under the trees, olive in the open sun.
- Content creators: a built-in before-and-after moment for every post.
Specifications
| Model | 52613-2 (C4) |
| Frame Color (Indoor → Sunlight) | Light Pink → Olive Green |
| Lens | Nylon photochromic, clear → dark grey |
| Frame Material | Injection acetate |
| Lens Width | 49 mm |
| Bridge Width | 22 mm |
| Temple Length | 145 mm |
| Frame Width | 142 mm |
| Lens Height | 44 mm |
| Weight | 28.5 g |
| Fit | Unisex, round / retro |
Note: all dimensions are measured manually with a deviation range of ±1 mm.
Related Reading
See how the technology works in photochromic glasses and color-changing sunglasses, or compare other colorways of this frame: Grey to Blue Photochromic Glasses C5 and Yellow to Red Photochromic Glasses C6. Browse the full sunglasses collection.




