Serengeti Charlton Square Sunglasses Unisex
Description
The Serengeti Charlton is a square-silhouette frame built around bio-acetate construction — a plant-derived material that offers the richness of traditional acetate with a reduced environmental footprint. Its geometry is deliberate: broad, flat-topped lenses and defined corners create a structured, architectural look that reads equally well on a city rooftop or an open mountain road. Available in Medium and Medium-Large fits, the Charlton sits securely without crowding the temples, making it a strong choice for those who need a square frame that actually stays put.
The lens lineup is where the Charlton earns its technical credibility. Mineral glass lenses deliver optical clarity that polycarbonate simply cannot match — scratch-resistant, distortion-free, and finished in polarized 555nm spectral filtering across most variants, which targets the precise wavelength of yellow-green light the human eye is most sensitive to in bright conditions. Colorways range from the clean contrast of Black Mineral Polarized and the warmth of Classic Tortoise and Havana, to the fashion-forward Shiny Blue Marble and the high-contrast utility of Shiny Crystal Dark Green Mineral Polarized Drivers. The Crystal Shiny Blue Gradient variant (Cat 2–3) suits those who want a lighter tint for variable light. The broad, square shape pairs best with oval, heart, and diamond face shapes, where the angular frame adds welcome structure and balances softer facial lines.Frame Specifications| Specification | Detail |
|---|---|
| Brand | Serengeti |
| Model | Charlton |
| Frame Shape | Square |
| Frame Material | Bio-Acetate |
| Lens Material | Mineral Glass |
| Lens Technology | Polarized 555nm / Drivers / Blue Gradient (varies by colorway) |
| Lens Category | Cat 2 to 3 / Cat 3 to 3 (varies by colorway) |
| Available Sizes | Medium, Medium-Large |
| Gender | Unisex |
| Available Colors | Black, Classic Tortoise, Crystal Shiny Blue Gradient, Havana, Shiny Blue Marble, Shiny Crystal Dark Green, Shiny Tortoise |
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Shipping, returns, and warranty
- Free US shipping on orders over $30. Orders $30 and under are a flat $5. Shipping details
- Returns accepted within 30 days of delivery, unworn and in original packaging. Returns
- Frames: 1-year manufacturer defect warranty. Lenses: 30 days. Warranty
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