Serengeti Charlton Square Sunglasses Unisex — Polarized

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.

Every pair sold at AllureAid.com is 100% authentic, sourced directly through authorized distribution channels — not grey-market imports. We include free shipping on all orders and a 30-day return window, so you can order with confidence and take the time you need to decide. Whether you're buying your first pair of Serengeti mineral lenses or adding to a collection, you're covered from checkout to doorstep.

Frame Specifications

Why Buy from AllureAid?

• Free Shipping — Complimentary delivery on every order, no minimum required
• 30-Day Returns — Hassle-free returns within 30 days of delivery
• 100% Authentic — Authorized retailer; every frame is verified genuine
• Same-Day Shipping — Select styles ship the same business day when ordered before cutoff