Inhouse product
Brand - Calvin Klein
Type - Sunglasses
Lens
Material - Glass
UV
Protection – UV400
Model
No - CK-21528 C-220 53
The Calvin Klein Sunglasses model CK-21528 C-220 53 (often listed as CK21528S) is a modern, full-rim acetate frame with a versatile shape, marketed as a unisex or men's style.
Here is a detailed breakdown of the specifications:
| Feature | Detail |
| Model Name/Series | CK 21528S (Sunglasses) |
| Gender | Unisex (sometimes marketed toward Men) |
| Frame Material | Plastic / Acetate (Full-rim, substantial feel) |
| Frame Shape | Square / Softened Square (A contemporary, full-coverage square shape with rounded corners for a less severe look) |
| Frame Color (Code 220) | Brown Havana or Shiny Dark Tortoise (A classic tortoise pattern featuring shades of brown and black) |
| Lens Color / Treatment | Brown or Gradient Green (Sources vary, but it is typically a Brown tint, sometimes a Gradient Green for the Brown Havana frame, which offers good contrast) |
| Lens Protection | 100% UV Protection (UV 400, typically Category 2 or 3 filter) |
| Size (Code 53) | This refers to the lens width, indicating a medium-to-large fit. |
| Lens Width | 53 mm (The "53" in the model number) |
| Bridge Width | 18 mm |
| Temple Length | 145 mm |
| Fit | Features fixed nose pads and custom core wire detailing in the temples. |