Inhouse product
Brand - Calvin Klein
Type - Sunglasses
Lens
Material - Glass
UV
Protection – UV400
Model
No - CK-21507 C-740 53
The Calvin Klein Sunglasses model CK-21507 C-740 53 (often listed as CK21507S) is a contemporary, full-rim plastic frame with a distinct color and a versatile, square shape.
Here is a detailed breakdown of the specifications:
| Feature | Detail |
| Model Name/Series | CK 21507S (Sunglasses) |
| Gender | Unisex (sometimes marketed toward Men) |
| Frame Material | Plastic / Acetate (Full-rim construction, often features a Wayfarer or Square retro style) |
| Frame Color (Code 740) | Crystal Light Yellow (A translucent or crystal-finish yellow tint, sometimes referred to as Crystal & Smoke or Brown) |
| Lens Color | Brown or Clear (While some listings show Brown, the 740 color code often corresponds to a Brown lens with 100% UV Protection) |
| Lens Protection | 100% UV Protection (UV 400, typically Category 3 filter for high sun glare reduction) |
| Size (Code 53) | This refers to the lens width, indicating a medium fit. |
| Lens Width | 53 mm (The "53" in the model number) |
| Bridge Width | 19 mm |
| Temple Length | 145 mm |
| Frame Shape | Square (With a style reminiscent of the classic Wayfarer) |
| Recommended Face Shape | Round and Oval faces. |